【单选题】【消耗次数：1】
The desegregation was achieved through a number of struggles, _____been mentioned in previous chapters.
①
a few of which
②
a few of them
③
a few of those
④
a few of that
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相关题目
【单选题】
There have been few novels by revolutionaries free of those
faults____ by Marx and Engels.
①
punished
②
blamed
③
criticized
④
scolded
【单选题】
Few of them hurt themselves in the accident last night,_________？
①
dont they
②
didnt they
③
did they
④
do they
【单选题】
Few of them hurt themselves in the accident last night, ___?
①
don’t they
②
didn’t they
③
did they
④
do they
【单选题】
3. Few of them hurt themselves in the accident last night, ____ ?
①
but
②
and
③
though
④
so
【单选题】
There has been an atmosphere of ( ) around here for a few days now.
①
anticipation
②
greeting
③
knowledgw
④
knowing
【单选题】
These goods are _____ for export, though a few of them may be sold on the home market.
①
essentially
②
completely
③
necessarily
④
remarkably
【单选题】
The prices of the agricultural products have been ____ steadily in the past few years.
①
risen
②
raised
③
arisen
④
aroused
【单选题】
This ATM has been out of service for a few days. It should ____ last week.
①
be fixed
②
have fixed
③
fix
④
have been fixed
【单选题】
This ATM has been out of service for a few days. It should ____ last week.
①
be fixed
②
have fixed
③
fix
④
have been fixed
【单选题】
The few Americans and Germans seemed just as _____ as I was.
①
constrained
②
curbed
③
inhibited
④
withhold
随机题目
【判断题】
对任意<img class=jc-formula data-tex=A,B\in F src=https://huaweicloudobs.ahjxjy.cn/F3D14591D01F0CA1A92A56FBCAE958DF.png style=vertical-align: middle;/>,则<img class=jc-formula data-tex=P(A-B)=P(A)-P(B) src=https://huaweicloudobs.ahjxjy.cn/0B32C29C079587980B49094D3DEB9C00.png style=vertical-align: middle;/>
①
正确
②
错误
【判断题】
设A=<img class=jc-formula data-tex=\begin{ pmatrix } 1 -2 \\ -2 4 \end{ pmatrix } src=https://huaweicloudobs.ahjxjy.cn/4F154C1EF8210EBCC4121447AD222144.png style=vertical-align: middle;/>,B=<img class=jc-formula data-tex=\begin{ pmatrix } 2 6 \\ 1 3 \end{ pmatrix } src=https://huaweicloudobs.ahjxjy.cn/FC3E17EF9C4B0B48E5790528C102FAD8.png style=vertical-align: middle;/>，则AB=BA=0
①
正确
②
错误
【判断题】
若事件A与事件B相互独立，则<img class=jc-formula data-tex=\bar { A } src=https://huaweicloudobs.ahjxjy.cn/024499E111DB930502696BB1E5570F8B.png style=vertical-align: middle;/>与B不相互独立
①
正确
②
错误
【单选题】
关于方程的解的表述，正确的是
①
方程的个数小于未知数的个数的齐次线性方程组必无非零解
②
方程个数等于未知数的个数的齐次线性方程组有非零解的充要条件是系数矩阵的行列式不等于零
③
已知齐次线性方程组的两个不同的非零解，则这两个阶的和不是该齐次线性方程组的解
④
已知齐次线性方程组的一个非零解，则该解的任意实数倍也是该方程组的解
【单选题】
行列式<img class=jc-formula data-tex=\left| 1\quad 2\quad 3\\ 0\quad 1\quad 2\\ 0\quad 1\quad 1 \right| src=https://huaweicloudobs.ahjxjy.cn/35F4EB43933DE58FFABB5DE412E3F58F.png style=vertical-align: middle;/>的值为
①
<img class=jc-formula data-tex=-1 src=https://huaweicloudobs.ahjxjy.cn/7D7B521365F25DF6E98C94C0CFE31F90.png style=vertical-align: middle;/>
②
1
③
2
④
3