【单选题】
Bob is one of the [填空] in our school.
①
foreigner
②
foreigners
③
foreigneres
④
foreigneries
【判断题】
均匀分布的密度函数为<img class=jc-formula data-tex=p(x)=\left\{ \frac { 1 }{ b-a } ,\quad x\in \left[ a,b \right] \\ \quad 0\quad ,\quad \quad x\notin \left[ a,b \right] \right src=https://huaweicloudobs.ahjxjy.cn/D325A38B346388B9123FBF0184B22226.png style=vertical-align: middle;/>
①
正确
②
错误
【单选题】
—Thank you for your MP4 player. I’ll ask Mary to take it to you soon.—_____. I’ve bought a new one.
①
No sense
②
No hurry.
③
No way
④
sorry
【判断题】
设<img class=jc-formula data-tex=A=\left[ 3\quad -1\\ -6\quad 2 \right] ,B=\left[ 1\quad 2\\ 3\quad 6 \right] ,则AB=\left[ 0\quad 0\\ 0\quad 0 \right] src=https://huaweicloudobs.ahjxjy.cn/793B9AF3F80DEB5E691FF8385616A0B6.png style=vertical-align: middle;/>
①
正确
②
错误
【判断题】
答题说明：句子没有语法错误请选择“正确”，有语法错误请选择“错误”This question is more difficult than that one.
①
正确
②
错误
【单选题】
22. One day while Mr. King was working, he had a/an ____: his left leg was badly injured.
①
business
②
accident
③
matter
④
event
【单选题】
<img class=jc-formula data-tex=\left[ 3\\ 2\\ 1 \right] \left[ 1\quad -1 \right] src=https://huaweicloudobs.ahjxjy.cn/140389953ABC2149E6EE01767083AAB1.png style=vertical-align: middle;/>所得矩阵为
①
<img class=jc-formula data-tex=3\times 2 src=https://huaweicloudobs.ahjxjy.cn/709E6BE75B1DACDC4FBD6AB3F27A27E4.png style=vertical-align: middle;/>矩阵
②
<img class=jc-formula data-tex=2\times 3 src=https://huaweicloudobs.ahjxjy.cn/76886169589F91DAFEE88BCBFA352A26.png style=vertical-align: middle;/>矩阵
③
<img class=jc-formula data-tex=3\times 3 src=https://huaweicloudobs.ahjxjy.cn/84D944E150832047167962ADC8A2CFE8.png style=vertical-align: middle;/>矩阵
④
两者不能相乘
【判断题】
设A为n阶方阵，则<img class=jc-formula data-tex=\left| { A }^{ T } \right| =\left| A \right| src=https://huaweicloudobs.ahjxjy.cn/40C5AD1014BBBAA8411F7182772DB144.png style=vertical-align: middle;/>
①
正确
②
错误