【单选题】【消耗次数：1】
12. We didn’t catch the train _______ we left late.
①
so
②
because
③
but
④
though
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相关题目
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_____ that we couldn’ t catch up with him.
①
So fast he ran
②
So fast did he run
③
So fast ran he
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Such fast did he run
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We are interested in the weather because it __________ us so directly --- what we wear, what we do, and even how we feel.
①
benefits
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affects
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guides
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effects
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All the flights ____ because of the snowstorm, we had
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were canceled
②
had been canceled
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having canceled
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having been canceled
【单选题】
All the flights _____because of the snowstorm, we had to take the train instead.
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were canceled
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had been canceled
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having canceled
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having been canceled
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12. When we arrived, we found the meeting room crowded with ____ students.
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quite a few
②
only a few
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few
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a few quite
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If we hadn’t got a lift, we ____ the top flat so soon.
①
would not reach
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can not reach
③
could not have reached
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will not reach
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I do not intend to follow that, because we shall have an opportunity to do so on another __________ .
①
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②
situation
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condition
④
environment
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I think we’d better ____ , otherwise we will be late for class.
①
to hurry up
②
hurrying up
③
hurried up
④
hurry up
【单选题】
He said he would continue a support us we didn’t break the rules.
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as well as
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as soon as
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as far as
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as long as
随机题目
【单选题】
设<img class=jc-formula data-tex=y={ x }^{ 5 } src=https://huaweicloudobs.ahjxjy.cn/EDB88A12D54D5E69BD3D743064FFAB68.png style=vertical-align: middle;/>,则<img class=jc-formula data-tex={ y }^{ (5) } src=https://huaweicloudobs.ahjxjy.cn/5F07240F1291A5C2A46882FE1F8487C3.png style=vertical-align: middle;/>=( ).
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0
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x
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5
④
5!
【单选题】
<img class=jc-formula data-tex=\lim _{ x\rightarrow 0 }{ \frac { { e }^{ x }-1+{ x }^{ 3 }\sin { \frac { \pi }{ 3 } } }{ x } } src=https://huaweicloudobs.ahjxjy.cn/A2006E50A4F21466E3874418D57C6DDD.png style=vertical-align: middle;/>=( )
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-1
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【单选题】
<img class=jc-formula data-tex=\int _{ -1 }^{ 1 }{ { x }^{ 3 }\cos { xdx= } } src=https://huaweicloudobs.ahjxjy.cn/04A98933006CDA61C3E22C4BA4235B3D.png style=vertical-align: middle;/>( )
①
0
②
1
③
2
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3
【单选题】
<img class=jc-formula data-tex=d[\int { f\left( x \right) } dx] src=https://huaweicloudobs.ahjxjy.cn/B3C1407E027378C58AC43470F70B775F.png style=vertical-align: middle;/>=( )
①
<img class=jc-formula data-tex=f\left( x \right) src=https://huaweicloudobs.ahjxjy.cn/FB6E53A56CB8DA138AA7D1A4EBCF7519.png style=vertical-align: middle;/>
②
<img class=jc-formula data-tex=f\left( x \right)+C src=https://huaweicloudobs.ahjxjy.cn/3D8F322950BC62160B17C6A27D3DBE48.png style=vertical-align: middle;/>
③
<img class=jc-formula data-tex=f\left( x \right)dx src=https://huaweicloudobs.ahjxjy.cn/1A8CC7EE30BA4B6FB278BB1D69655FA8.png style=vertical-align: middle;/>
④
<img class=jc-formula data-tex=f^{ \prime }\left( x \right) src=https://huaweicloudobs.ahjxjy.cn/26D198C4225DCDBF49E37926C6480B23.png style=vertical-align: middle;/>
【单选题】
过点（2，0）且与直线<img class=jc-formula data-tex=y=\frac { 1 }{ x } src=https://huaweicloudobs.ahjxjy.cn/0D8F356CCA61A2D9F9454B228CA2C60F.png style=vertical-align: middle;/>相切的直线方程为（ ）
①
<img class=jc-formula data-tex=y=-\frac { x-2 }{ 4 } src=https://huaweicloudobs.ahjxjy.cn/3A4E5D921C7CBC02D1146DE44427DEFC.png style=vertical-align: middle;/>
②
<img class=jc-formula data-tex=y-1=-(x-1) src=https://huaweicloudobs.ahjxjy.cn/8E8CFA9D156735224222F8247C0C87C3.png style=vertical-align: middle;/>
③
<img class=jc-formula data-tex=y=4(x-2) src=https://huaweicloudobs.ahjxjy.cn/6A504CAC52CB66E8F503EF49B2651A24.png style=vertical-align: middle;/>
④
y-1=2(x-1)
【单选题】
当<img class=jc-formula data-tex=x\rightarrow { 0 }^{ + } src=https://huaweicloudobs.ahjxjy.cn/E2D9AA2CC7EB16C7E54E907F5BCFAF0A.png style=vertical-align: middle;/>时，与<img class=jc-formula data-tex=\sqrt { x } src=https://huaweicloudobs.ahjxjy.cn/73DED5C5DE4D23317071AB7F0544117D.png style=vertical-align: middle;/>等价的无穷小量是（）
①
<img class=jc-formula data-tex=1-{ e }^{ \sqrt { x } } src=https://huaweicloudobs.ahjxjy.cn/A4E533ADE66EF655BE5212EF3ED1E632.png style=vertical-align: middle;/>
②
<img class=jc-formula data-tex=\sqrt { 1+x } -1 src=https://huaweicloudobs.ahjxjy.cn/123D3B598ED0476E1BD7C6C510AA6C9F.png style=vertical-align: middle;/>
③
<img class=jc-formula data-tex=1-\cos { \sqrt { x } } src=https://huaweicloudobs.ahjxjy.cn/3F68AC6E57534CFBC43544CFACCFD1BA.png style=vertical-align: middle;/>
④
<img class=jc-formula data-tex=\ln { (1+\sqrt { x } ) } src=https://huaweicloudobs.ahjxjy.cn/1CAD5DD11658A869F09ED3A837557C9C.png style=vertical-align: middle;/>
【单选题】
若y=<img class=jc-formula data-tex=\arctan { { x }^{ 2 } } src=https://huaweicloudobs.ahjxjy.cn/E05C79FF49BA781CBD9FECB6D6574FFD.png style=vertical-align: middle;/>,则其在点x=1处的微分等于（ ）
①
1
②
2
③
dx
④
2dx
【单选题】
下列函数在x=0处不可导的是（ ）
①
<img class=jc-formula data-tex=y=x\left| x \right| src=https://huaweicloudobs.ahjxjy.cn/5C41FA7B730A7E1A363E5C5BDBD60E95.png style=vertical-align: middle;/>
②
y=sinx
③
y=<img class=jc-formula data-tex=\begin{ cases } x-1,\quad x\ge 0 \\ 2x+3,x0 \end{ cases } src=https://huaweicloudobs.ahjxjy.cn/D2E2F6C0CFCFE2EBD80EB0BDBAF5BFCF.png style=vertical-align: middle;/>
④
y=ln(x+1)
【单选题】
<img class=jc-formula data-tex={ [\int { df\left( x \right) ] } }^{ \prime } src=https://huaweicloudobs.ahjxjy.cn/B95274126DF5D940C901D8DCF91141C3.png style=vertical-align: middle;/>=( )
①
<img class=jc-formula data-tex=f\left( x \right) src=https://huaweicloudobs.ahjxjy.cn/FB6E53A56CB8DA138AA7D1A4EBCF7519.png style=vertical-align: middle;/>
②
<img class=jc-formula data-tex=f\left( x \right)dx src=https://huaweicloudobs.ahjxjy.cn/1A8CC7EE30BA4B6FB278BB1D69655FA8.png style=vertical-align: middle;/>
③
<img class=jc-formula data-tex=f^{ \prime }\left( x \right) src=https://huaweicloudobs.ahjxjy.cn/7D5ADDD2592B15D6302A94A30FFBE6B9.png style=vertical-align: middle;/>
④
<img class=jc-formula data-tex=f^{ \prime }\left( x \right) dx src=https://huaweicloudobs.ahjxjy.cn/32A0B2C52E923577A0F60FF56BFB7A1B.png style=vertical-align: middle;/>
【单选题】
<img class=jc-formula data-tex=x\rightarrow 0 src=https://huaweicloudobs.ahjxjy.cn/5C96B116E47BDE8D1E0DCE5358B3C268.png style=vertical-align: middle;/>时，与函数y=sinx等价的是（）
①
y=2x
②
y=<img class=jc-formula data-tex={ x }^{ 2 } src=https://huaweicloudobs.ahjxjy.cn/0305FF21DAA4ED8519EFCEDC63EB7EC5.png style=vertical-align: middle;/>
③
y=ln(1+x)
④
<img class=jc-formula data-tex=y={ e }^{ x } src=https://huaweicloudobs.ahjxjy.cn/2A4DAAB20CEF8BEFBA4472BD24996186.png style=vertical-align: middle;/>