【单选题】
函数<img class="kfformula" src="20190730/1564477332852828.png" data-latex="y={log}_{5}\left ( {x-2} \right )"/>的定义域是（）
①
（1，+∞）
②
R
③
（0，+∞）
④
（2，+∞）
【单选题】
The building suffered ____ damage as a result of the big fire.
①
moderate
②
considerable
③
considerate
④
concrete
【单选题】
Please ______ you cigar before entering this building.
①
put down
②
put up
③
put off
④
put out
【判断题】
The construction of the building will have completed by the end of this month.
①
正确
②
错误
【单选题】
已知在五重贝努里实验中成功次数X满足<img class=jc-formula data-tex=P\left\{ X=1 \right\} =P\left\{ X=2 \right\} src=https://huaweicloudobs.ahjxjy.cn/73EE52079378813941B25A76549F8C66.png style=vertical-align: middle;/>,则<img class=jc-formula data-tex=P\left\{ X=4 \right\} = src=https://huaweicloudobs.ahjxjy.cn/9E791D80EA7782B7045255605AA1F619.png style=vertical-align: middle;/>
①
8/243
②
9/243
③
10/243
④
11/243
【单选题】
A: Hi, Mark, Im glad you could come. B: [填空] A: No, you are right on time.
①
Its my great honor, thanks.
②
You are welcome. Am I the first?
③
Thanks. Do you have the time?
④
I hope Im not too late.
【单选题】
下列函数中，在区间<img class="kfformula" src="20190808/1565255863544549.png" data-latex="\left ( {-\infty ，+\infty } \right )"/>内为增函数的是（ ）
①
<img class="kfformula" src="20190808/1565255863279980.png" data-latex="y=2-x"/>
②
<img class="kfformula" src="20190808/1565255863845028.png" data-latex="y={3}^{x}"/>
③
<img class="kfformula" src="20190808/1565255863797150.png" data-latex="y={x}^{-2}"/>
④
<img class="kfformula" src="20190808/1565255863844363.png" data-latex="y={log}_{0.3}x"/>
【单选题】
It is a huge task to ______ all the rooms in the building in such a short time.
①
go ahead with
②
keep up
③
clean up
④
work out
【单选题】
Which sentence is right?
①
I dont think that he is not right.
②
I think he is not right.
③
I dont think that he is right.
④
I think he was not right.
【单选题】
设A为2级方阵: <img class=jc-formula data-tex=\left| A \right| =2 src=https://huaweicloudobs.ahjxjy.cn/5F65A17F49C328743182B3A80206DC87.png style=vertical-align: middle;/>，则<img class=jc-formula data-tex=\left| -2A \right| src=https://huaweicloudobs.ahjxjy.cn/D4D919815DF8BCB061EDD64451FBDA82.png style=vertical-align: middle;/>=[填空].
①
8
②
-8
③
-4