The left building is as [填空] as the right one.

【单选题】

数列的通项公式是<img class="kfformula" src="20190809/1565316958277756.png" data-latex="{a}_{n}=n\left ( {3n-1} \right )"/>,则它的第几项是70？（）

① 5

② 7

③ 6

④ 15

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【单选题】

设<img class=jc-formula data-tex=f\left( x \right) src=https://huaweicloudobs.ahjxjy.cn/FB6E53A56CB8DA138AA7D1A4EBCF7519.png style=vertical-align: middle;/>在<img class=jc-formula data-tex={ x }_{ 0 } src=https://huaweicloudobs.ahjxjy.cn/ABCC8DCF3CB54080A21570A5BADC633E.png style=vertical-align: middle;/>处可导，则<img class=jc-formula data-tex=\lim _{ h\rightarrow 0 }{ \frac { f\left( { x }_{ 0 }-h \right) -f\left( { x }_{ 0 } \right) }{ h } } = src=https://huaweicloudobs.ahjxjy.cn/114D1182A572A98FFD54B6C4066BEC8A.png style=vertical-align: middle;/>( ).

① 2<img class=jc-formula data-tex=f^{ \prime }\left( { x }_{ 0 } \right) src=https://huaweicloudobs.ahjxjy.cn/B5876FA4E8E95C0AB96A2BDEDFEBD976.png style=vertical-align: middle;/>

② <img class=jc-formula data-tex=f^{ \prime }\left( { x }_{ 0 } \right) src=https://huaweicloudobs.ahjxjy.cn/B5876FA4E8E95C0AB96A2BDEDFEBD976.png style=vertical-align: middle;/>

③ -<img class=jc-formula data-tex=f^{ \prime }\left( { x }_{ 0 } \right) src=https://huaweicloudobs.ahjxjy.cn/B5876FA4E8E95C0AB96A2BDEDFEBD976.png style=vertical-align: middle;/>

④ 不存在

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【单选题】

Modesty helps one to go forward, ______ conceit makes one lag behind.

① whenever

② only if

③ whereas

④ consequently

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【单选题】

They left the company of their own ( ).

① chioce

② choose

③ violation

④ violin

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【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;/>

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【单选题】

Everything is right here, _____?

① isn’ t it

② aren’ t they

③ are they

④ is it

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【判断题】

智能楼宇，也称智能大厦或智能建筑（IB：Intelligent Building）。（）

① 正确

② 错误

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【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;/>

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【单选题】

Nothing but one desk and six chairs ___ in the room.

① are

② is stayed

③ is

④ are left

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【单选题】

Every year, one student in our high school wins a scholarship that ____one year of college.

① improves

② subsidizes

③ obliges

④ inflicts

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