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2022—2023學(xué)年度第一學(xué)期期末質(zhì)量檢測考試高二文科數(shù)學(xué)試題注意事項(xiàng):1.試卷分為第Ⅰ卷(選擇題)和第Ⅱ卷(非選擇題)兩部分,共150分,考試時間120A鐘,共4頁.2.答第Ⅰ卷前考生務(wù)必在每小題選出答案后,用鉛筆把答題卡上對應(yīng)題目的答案標(biāo)號涂見如需改動,用橡皮擦干凈后,再選涂其他答案.3.第Ⅱ卷答在答卷紙的相應(yīng)位置上,否則視為無效.答題前考生務(wù)必將自己的班級?姓名學(xué)號?考號?座位號填寫清楚.第I卷(選擇題,共60分)一?單項(xiàng)選擇題:本大題共12小題,每小題5分,共60分.在每小題列出的四個選項(xiàng)中,只有一項(xiàng)是最符合題目要求的.1.自由落體運(yùn)動的物體下落的距離SKIPIF1<0(單位:SKIPIF1<0)關(guān)于時間SKIPIF1<0(單位:SKIPIF1<0)的函數(shù)SKIPIF1<0,取SKIPIF1<0,則SKIPIF1<0時的瞬時速度是多少()SKIPIF1<0A.10 B.20 C.30 D.40【答案】B【解析】【分析】SKIPIF1<0時的瞬時速度是SKIPIF1<0,求導(dǎo),代入SKIPIF1<0即可求解.【詳解】SKIPIF1<0,故SKIPIF1<0時的瞬時速度是SKIPIF1<0SKIPIF1<0.故選:B.2.在等差數(shù)列SKIPIF1<0中,設(shè)其前SKIPIF1<0項(xiàng)和為SKIPIF1<0,若SKIPIF1<0,則SKIPIF1<0()A.4 B.13 C.26 D.52【答案】C【解析】【分析】利用等差數(shù)列的性質(zhì)可得SKIPIF1<0,結(jié)合等差數(shù)列的求和公式可得結(jié)果.【詳解】SKIPIF1<0,SKIPIF1<0,故選:C.3.下列函數(shù)的求導(dǎo)運(yùn)算中,錯誤的是()A.SKIPIF1<0 B.SKIPIF1<0C.SKIPIF1<0 D.SKIPIF1<0【答案】C【解析】【分析】根據(jù)求導(dǎo)法則依次計(jì)算得到ACD正確,SKIPIF1<0,B錯誤,得到答案.【詳解】對選項(xiàng)A:SKIPIF1<0,正確;對選項(xiàng)B:SKIPIF1<0,正確;對選項(xiàng)C:SKIPIF1<0,錯誤;對選項(xiàng)D:SKIPIF1<0,正確.故選:C4.定義在區(qū)間SKIPIF1<0上的函數(shù)SKIPIF1<0的導(dǎo)函數(shù)SKIPIF1<0的圖象如圖所示,則下列結(jié)論正確的是()A.函數(shù)SKIPIF1<0在區(qū)間SKIPIF1<0上單調(diào)遞增B.函數(shù)SKIPIF1<0在區(qū)間SKIPIF1<0上單調(diào)遞減C.函數(shù)SKIPIF1<0在SKIPIF1<0處取得極大值D.函數(shù)SKIPIF1<0在SKIPIF1<0處取得極大值【答案】A【解析】【分析】根據(jù)函數(shù)的單調(diào)性和導(dǎo)數(shù)值的正負(fù)的關(guān)系,可判斷A、B;根據(jù)函數(shù)的極值點(diǎn)和導(dǎo)數(shù)的關(guān)系可判斷C、D的結(jié)論.【詳解】在區(qū)間SKIPIF1<0上SKIPIF1<0,故函數(shù)SKIPIF1<0在區(qū)間SKIPIF1<0上單調(diào)遞增,故A正確;在區(qū)間SKIPIF1<0上SKIPIF1<0,故函數(shù)SKIPIF1<0在區(qū)間SKIPIF1<0上單調(diào)遞增,故B錯誤;當(dāng)SKIPIF1<0時,SKIPIF1<0,可知函數(shù)SKIPIF1<0在SKIPIF1<0上單調(diào)遞增,故SKIPIF1<0不是函數(shù)SKIPIF1<0的極值點(diǎn),故C錯誤;當(dāng)SKIPIF1<0時,SKIPIF1<0,SKIPIF1<0單調(diào)遞減;當(dāng)SKIPIF1<0時,SKIPIF1<0,SKIPIF1<0單調(diào)遞增,故函數(shù)SKIPIF1<0在SKIPIF1<0處取得極小值,故D錯誤,故選:A.5.在等比數(shù)列SKIPIF1<0中,SKIPIF1<0,則SKIPIF1<0與SKIPIF1<0的等比中項(xiàng)是()A.SKIPIF1<0 B.1 C.2 D.SKIPIF1<0【答案】D【解析】【分析】通過等比數(shù)列的通項(xiàng)公式計(jì)算SKIPIF1<0,進(jìn)而可得答案.【詳解】因?yàn)镾KIPIF1<0,所以SKIPIF1<0與SKIPIF1<0的等比中項(xiàng)是SKIPIF1<0,故選:D.6.已知函數(shù)SKIPIF1<0,則下列選項(xiàng)正確的是()A.SKIPIF1<0 B.SKIPIF1<0C.SKIPIF1<0 D.SKIPIF1<0【答案】D【解析】【分析】求導(dǎo),判斷SKIPIF1<0在SKIPIF1<0上單調(diào)性,利用單調(diào)性比較大小.【詳解】因?yàn)楹瘮?shù)SKIPIF1<0,所以SKIPIF1<0,所以SKIPIF1<0在SKIPIF1<0上遞增,又因?yàn)镾KIPIF1<0,所以SKIPIF1<0,故選:D7.已知命題SKIPIF1<0:“若SKIPIF1<0,則SKIPIF1<0”;命題SKIPIF1<0:“SKIPIF1<0,則SKIPIF1<0”.則下列命題是真命題的是()A.SKIPIF1<0 B.SKIPIF1<0 C.SKIPIF1<0 D.SKIPIF1<0【答案】D【解析】【分析】先利用特值法和作差法判定命題SKIPIF1<0,SKIPIF1<0的真假,再利用復(fù)合命題真假的判定方法判斷即可.【詳解】當(dāng)SKIPIF1<0時,SKIPIF1<0,故命題SKIPIF1<0是假命題,因?yàn)镾KIPIF1<0,則SKIPIF1<0,所以命題SKIPIF1<0是真命題,所以SKIPIF1<0是假命題,故A錯誤;SKIPIF1<0是假命題,故B錯誤;SKIPIF1<0是假命題,故C錯誤;SKIPIF1<0是真命題,故D正確,故選:D.8.已知SKIPIF1<0是等差數(shù)列SKIPIF1<0前SKIPIF1<0項(xiàng)和,若SKIPIF1<0,則SKIPIF1<0()A.40 B.45 C.50 D.55【答案】A【解析】【分析】利用等差數(shù)列片段和得性質(zhì)求解即可.【詳解】由題可知數(shù)列SKIPIF1<0為等差數(shù)列,所以有SKIPIF1<0得SKIPIF1<0,解得SKIPIF1<0,故選:A9.下列命題中是真命題的是()A.“SKIPIF1<0”是“SKIPIF1<0”的必要非充分條件B.SKIPIF1<0的最小值是2C.在SKIPIF1<0中,“SKIPIF1<0”是“SKIPIF1<0”的充要條件D.“若SKIPIF1<0,則SKIPIF1<0成等比數(shù)列”的逆否命題【答案】C【解析】【分析】解不等式,根據(jù)充分條件與必要條件的定義可判斷A;令SKIPIF1<0,根據(jù)對勾函數(shù)的性質(zhì)可判斷B;根據(jù)正弦定理可判斷C;取SKIPIF1<0,可得原命題為假命題,根據(jù)原命題與其逆否命題的真假性相同可判斷D.【詳解】對于A,解SKIPIF1<0,可得SKIPIF1<0或SKIPIF1<0,解SKIPIF1<0,可得SKIPIF1<0或SKIPIF1<0,故“SKIPIF1<0”是“SKIPIF1<0”的充分非必要條件,故A錯誤;對于B,令SKIPIF1<0,因?yàn)镾KIPIF1<0,所以SKIPIF1<0.因?yàn)镾KIPIF1<0在SKIPIF1<0上單調(diào)遞減,故SKIPIF1<0,故B錯誤;對于C,SKIPIF1<0中,SKIPIF1<0,其中SKIPIF1<0為SKIPIF1<0外接圓的半徑,故C正確;對于D,取SKIPIF1<0,滿足SKIPIF1<0,但SKIPIF1<0不成等比數(shù)列,故命題“若SKIPIF1<0,則SKIPIF1<0成等比數(shù)列”為假命題,故其逆否命題也為假命題,故D錯誤.故選:C.10.已知數(shù)列SKIPIF1<0中,SKIPIF1<0,則數(shù)列SKIPIF1<0的前SKIPIF1<0項(xiàng)和為()A.SKIPIF1<0 B.SKIPIF1<0 C.SKIPIF1<0 D.SKIPIF1<0【答案】B【解析】【分析】根據(jù)SKIPIF1<0的通項(xiàng)公式,可得SKIPIF1<0為等比數(shù)列,根據(jù)等比數(shù)列的求和公式進(jìn)行求和即可.【詳解】因?yàn)镾KIPIF1<0,且SKIPIF1<0,所以SKIPIF1<0是首項(xiàng)為SKIPIF1<0,公比為SKIPIF1<0的等比數(shù)列,所以SKIPIF1<0前SKIPIF1<0項(xiàng)和為:SKIPIF1<0.故選:B.11.若SKIPIF1<0,且函數(shù)SKIPIF1<0在SKIPIF1<0處有極值,則SKIPIF1<0的最大值等于()A.2 B.3 C.6 D.9【答案】D【解析】【分析】求出導(dǎo)函數(shù),利用函數(shù)在極值點(diǎn)處的導(dǎo)數(shù)值為0得到SKIPIF1<0,SKIPIF1<0滿足的條件,利用二次函數(shù)的性質(zhì)求出SKIPIF1<0的最值.【詳解】由題意,求導(dǎo)函數(shù)SKIPIF1<0,SKIPIF1<0在SKIPIF1<0處有極值,所以SKIPIF1<0,即SKIPIF1<0,SKIPIF1<0,SKIPIF1<0,SKIPIF1<0,SKIPIF1<0,當(dāng)SKIPIF1<0,SKIPIF1<0時,SKIPIF1<0取得最大值9,此時SKIPIF1<0,當(dāng)SKIPIF1<0時,SKIPIF1<0,當(dāng)SKIPIF1<0時,SKIPIF1<0,所以SKIPIF1<0在SKIPIF1<0上單調(diào)遞減,在SKIPIF1<0上單調(diào)遞增,因此滿足SKIPIF1<0是SKIPIF1<0的極值點(diǎn),所以SKIPIF1<0的最大值等于9,故選:D12.已知定義在SKIPIF1<0上的函數(shù)SKIPIF1<0滿足SKIPIF1<0,且有SKIPIF1<0,則SKIPIF1<0的解集為()A.SKIPIF1<0 B.SKIPIF1<0 C.SKIPIF1<0 D.SKIPIF1<0【答案】B【解析】【分析】構(gòu)造函數(shù)SKIPIF1<0,應(yīng)用導(dǎo)數(shù)及已知條件判斷SKIPIF1<0的單調(diào)性,而題設(shè)不等式等價于SKIPIF1<0,結(jié)合單調(diào)性即可得解.【詳解】設(shè)SKIPIF1<0,則SKIPIF1<0,∴SKIPIF1<0在SKIPIF1<0上單調(diào)遞減.又SKIPIF1<0,則SKIPIF1<0.∵SKIPIF1<0等價于SKIPIF1<0,即SKIPIF1<0,∴SKIPIF1<0,即所求不等式的解集為SKIPIF1<0.故選:B.第II卷(非選擇題,共90分)二?填空題:本大題共4小題,每小題5分,共20分.13.曲線SKIPIF1<0在SKIPIF1<0處的切線方程為__________.【答案】SKIPIF1<0【解析】【分析】根據(jù)導(dǎo)數(shù)的幾何意義,先求導(dǎo)得SKIPIF1<0,代入SKIPIF1<0,求得切線斜率,再利用SKIPIF1<0時SKIPIF1<0,結(jié)合直線方程即可得解.【詳解】首先求導(dǎo)可得SKIPIF1<0,所以曲線SKIPIF1<0在SKIPIF1<0處的切線斜率SKIPIF1<0,又SKIPIF1<0可得SKIPIF1<0,所以曲線SKIPIF1<0在SKIPIF1<0處的切線為SKIPIF1<0,即SKIPIF1<0.故答案為:SKIPIF1<014.當(dāng)命題“對任意實(shí)數(shù)SKIPIF1<0,不等式SKIPIF1<0恒成立”是假命題時,則SKIPIF1<0的取值范圍是__________.【答案】SKIPIF1<0【解析】【分析】由“對任意實(shí)數(shù)SKIPIF1<0,不等式SKIPIF1<0恒成立”求得SKIPIF1<0的取值范圍,再根據(jù)其為假命題求得SKIPIF1<0的取值范圍的補(bǔ)集,即為最終所求的SKIPIF1<0的取值范圍.【詳解】因?yàn)椤皩θ我鈱?shí)數(shù)SKIPIF1<0,不等式SKIPIF1<0恒成立”,則SKIPIF1<0,即SKIPIF1<0,又因?yàn)槊}“對任意實(shí)數(shù)SKIPIF1<0,不等式SKIPIF1<0恒成立”是假命題,所以SKIPIF1<0或SKIPIF1<0.故答案為:SKIPIF1<015.若SKIPIF1<0滿足約束條件SKIPIF1<0,則SKIPIF1<0的最大值為__________.【答案】5【解析】【分析】根據(jù)約束條件畫出可行域,利用目標(biāo)函數(shù)的幾何意義即可求解.【詳解】根據(jù)約束條件畫出可行域(如圖),把SKIPIF1<0變形為SKIPIF1<0,得到斜率為SKIPIF1<0,在SKIPIF1<0軸上的截距為SKIPIF1<0,隨SKIPIF1<0變化的一組平行直線.由圖可知,當(dāng)直線SKIPIF1<0過點(diǎn)SKIPIF1<0時,截距SKIPIF1<0最小,即SKIPIF1<0最大,解方程組SKIPIF1<0,得點(diǎn)A坐標(biāo)為SKIPIF1<0,所以SKIPIF1<0.故答案為:5.16.寶塔山是延安的標(biāo)志,是革命圣地的象征,也是中國革命的搖籃,見證了中國革命的進(jìn)程,在中國老百姓的心中具有重要地位.如圖,在寶塔山的山坡A處測得SKIPIF1<0,從A處沿山坡直線往上前進(jìn)SKIPIF1<0到達(dá)B處,在山坡B處測得SKIPIF1<0,SKIPIF1<0,則寶塔CD的高約為_________m.(SKIPIF1<0,SKIPIF1<0,結(jié)果取整數(shù))【答案】44【解析】【分析】根據(jù)題意可得SKIPIF1<0為等腰三角形,即可得SKIPIF1<0,然后在SKIPIF1<0中利用正弦定理可求得結(jié)果.【詳解】因?yàn)镾KIPIF1<0,SKIPIF1<0,SKIPIF1<0,所以SKIPIF1<0,所以SKIPIF1<0,所以SKIPIF1<0,因?yàn)镾KIPIF1<0,所以SKIPIF1<0,SKIPIF1<0SKIPIF1<0,在SKIPIF1<0中,由正弦定理得SKIPIF1<0,SKIPIF1<0,所以SKIPIF1<0SKIPIF1<0所以SKIPIF1<0,故答案為:44.三?解答題:共70分,解答應(yīng)寫出文字說明?證明過程或演算步驟.17.已知函數(shù)SKIPIF1<0.(1)當(dāng)SKIPIF1<0時,求SKIPIF1<0的極值;(2)若SKIPIF1<0在SKIPIF1<0上單調(diào)遞增,求SKIPIF1<0取值范圍.【答案】(1)極小值為SKIPIF1<0,無極大值(2)SKIPIF1<0【解析】【分析】(1)求導(dǎo)得到SKIPIF1<0,確定函數(shù)的單調(diào)區(qū)間,根據(jù)單調(diào)區(qū)間計(jì)算極值得到答案.(2)SKIPIF1<0在SKIPIF1<0上恒成立,得到SKIPIF1<0,解得答案.【小問1詳解】當(dāng)SKIPIF1<0時,SKIPIF1<0,SKIPIF1<0,令SKIPIF1<0得SKIPIF1<0,當(dāng)SKIPIF1<0時,SKIPIF1<0,SKIPIF1<0單調(diào)遞減;當(dāng)SKIPIF1<0時,SKIPIF1<0,SKIPIF1<0單調(diào)遞增.所以SKIPIF1<0的極小值為SKIPIF1<0,無極大值.【小問2詳解】SKIPIF1<0在SKIPIF1<0上恒成立,即SKIPIF1<0在SKIPIF1<0上恒成立,所以SKIPIF1<0.18.漢中地處秦巴之間?漢水之源,綠水青山,物產(chǎn)豐富,自古就有“漢家發(fā)祥地?中華聚寶盆”之美稱.通過招商引資,某公司在我市投資36萬元用于新能源項(xiàng)目,第一年該項(xiàng)目維護(hù)費(fèi)用為6萬元,以后每年增加2萬元,該項(xiàng)目每年可給公司帶來25萬元的收入.假設(shè)第n年底,該項(xiàng)目的純利潤為SKIPIF1<0.(純利潤=累計(jì)收入-累計(jì)維護(hù)費(fèi)-投資成本)(1)寫出SKIPIF1<0的表達(dá)式,并求該項(xiàng)目從第幾年起開始盈利?(2)經(jīng)過幾年該項(xiàng)目年平均利潤達(dá)到最大?最大是多少萬元?【答案】(1)SKIPIF1<0,該項(xiàng)目從第3年起開始盈利.(2)經(jīng)過6年該項(xiàng)目年平均利潤達(dá)到最大,最大是8萬元.【解析】【分析】(1)由題意結(jié)合等差數(shù)列求和公式求得SKIPIF1<0的表達(dá)式,然后由SKIPIF1<0,解不等式即可;(2)求得該項(xiàng)目年平均利潤為SKIPIF1<0的表達(dá)式,結(jié)合基本不等式求解最值即可.【小問1詳解】SKIPIF1<0SKIPIF1<0,由SKIPIF1<0即SKIPIF1<0,解得SKIPIF1<0,所以,該項(xiàng)目從第3年起開始盈利.【小問2詳解】設(shè)該項(xiàng)目年平均利潤為SKIPIF1<0,則SKIPIF1<0SKIPIF1<0SKIPIF1<0SKIPIF1<0,當(dāng)且僅當(dāng)SKIPIF1<0,即SKIPIF1<0時取等號.所以,經(jīng)過6年該項(xiàng)目年平均利潤達(dá)到最大,最大是8萬元.19.等比數(shù)列SKIPIF1<0的各項(xiàng)均為正數(shù),且SKIPIF1<0,設(shè)SKIPIF1<0.(1)求數(shù)列SKIPIF1<0的通項(xiàng)公式;(2)已知數(shù)列SKIPIF1<0,求證:數(shù)列SKIPIF1<0的前SKIPIF1<0項(xiàng)和SKIPIF1<0.【答案】(1)SKIPIF1<0(2)證明見解析【解析】【分析】(1)根據(jù)等比數(shù)列基本量的計(jì)算即可求解,(2)根據(jù)放縮法得SKIPIF1<0,即可根據(jù)裂項(xiàng)求和進(jìn)行求解.【小問1詳解】設(shè)等比數(shù)列SKIPIF1<0公比為SKIPIF1<0,則SKIPIF1<0,由題意得SKIPIF1<0,解得SKIPIF1<0,SKIPIF1<0SKIPIF1<0;SKIPIF1<0【小問2詳解】由題意,SKIPIF1<0,SKIPIF1<0SKIPIF1<020.在①SKIPIF1<0;②SKIPIF1<0;③SKIPIF1<0.這三個條件中任選一個,補(bǔ)充在下面的問題中并作答.在SKIPIF1<0中,內(nèi)角SKIPIF1<0所對的邊分別是SKIPIF1<0,__________.(1)求SKIPIF1<0;(2)若SKIPIF1<0,求SKIPIF1<0的周長的取值范圍.【答案】(1)SKIPIF1<0(2)SKIPIF1<0【解析】【分析】(1)選①或②:由正弦定理得到SKIPIF1<0,再由余弦定理得到SKIPIF1<0,結(jié)合SKIPIF1<0,求出SKIPIF1<0;選③:由正弦定理化簡得到SKIPIF1<0,進(jìn)而得到SKIPIF1<0,SKIPIF1<0,求出SKIPIF1<0;(2)由余弦定理結(jié)合基本不等式可得出SKIPIF1<0,從而可求得SKIPIF1<0的周長的取值范圍.【小問1詳解】選①,SKIPIF1<0,SKIPIF1<0SKIPIF1<0SKIPIF1<0SKIPIF1<0,又SKIPIF1<0SKIPIF1<0,又SKIPIF1<0,SKIPIF1<0.選②,SKIPIF1<0SKIPIF1<0,又SKIPIF1<0SKIPIF1<0,又SKIPIF1<0,SKIPIF1<0.選③,SKIPIF1<0,SKIPIF1<0SKIPIF1<0SKIPIF1<0SKIPIF1<0,又SKIPIF1<0,SKIPIF1<0.【小問2詳解】由余弦定理得:SKIPIF1<0,SKIPIF1<0,當(dāng)且僅當(dāng)SKIPIF1<0時,取等號.SKIPIF1<0,又SKIPIF1<0,SKIPIF1<0SKIPIF1<0的周長的取值范圍為SKIPIF1<0SKIPIF1<021.已知數(shù)列SKIPIF1<0為等差數(shù)列,SKIPIF1<0,數(shù)列SKIPIF1<0的前SKIPIF1<0項(xiàng)和為SKIPIF1<0,且滿足SKIPIF1<0.(1)求SKIPIF1<0和SKIPIF1<0的通項(xiàng)公式:(2)若SKIPIF1<0,求數(shù)列SKIPIF1<0的前SKIPIF1<0項(xiàng)和為SKIPIF1<0.【答案】(1)SKIPIF1<0,SKIPIF1<0(2)SKIPIF1<0【解析】【分析】(1)列出關(guān)于首項(xiàng)和公差的方程組求得SKIPIF1<0;利用SKIPIF1<0求得SKIPIF1<0;(2)利用錯位相減法求得SKIPIF1<0.【小問1詳解】設(shè)SKIPIF1<0的公差為d,由題意可得SKIPIF1<0,解得SKIPIF1<0,所以SKIPIF1<0.SKIPIF1<0,SKIPIF1<0時,SKIPIF1<0,SKIPIF1<0時,SKIPIF1<0,SKIPIF1<0,SKIPIF1<0SKIPIF1<0是以1為首項(xiàng),3為公比的等比數(shù)列,SKIPIF1<0.【小問2詳解】SKIPIF1<0SKIPIF1<0SKIPIF1
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