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【单选题】

The town finally _______ last week after being pounded with heavy artillery for more than two months.

A.
succeeded
B.
subscribed
C.
succumbed
D.
suspected
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参考答案:
参考解析:
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举一反三

【单选题】以下函数在$x=0$连续的是

A.
$y=sgn x$
B.
$y=\frac{1}{x}$
C.
$y=[x], 其中 [x]$ 是取整函数
D.
$y=sin x$

【单选题】函数$ y = \frac{{\ln (1 + 3x)}}{{{x^2} - 3x + 2}} $的定义域为 ( ).

A.
$\left\{ {\left. x \right|x > - \frac{1}{3}} \right\}$
B.
$\left\{ {\left. {x \in R} \right|x \ne 1,x \ne 2} \right\} $
C.
$\left\{ {\left. x \right|x > - \frac{1}{3},x \ne 1,x \ne 2} \right\} $
D.
$\left\{ {\left. x \right|x > \frac{1}{3},x \ne 1,x \ne 2} \right\} $

【单选题】、若\(Y\)的分布函数为\(F(y)\),则\(F(2)\)的值为

A.
\(\frac{2}{5}\)
B.
\(\frac{19}{30}\)
C.
\(\frac{11}{30}\)
D.
\(\frac{4}{15}\)

【单选题】函数$y = \arcsin (2x + 1) $的定义域为 ( ).

A.
$\{ \left. x \right| - 1 \le x \le 0\} $
B.
$\{ \left. x \right| - \frac{1}{2} \le x \le 0\} $
C.
$\{ \left. x \right|x \ge - \frac{1}{2}\} $
D.
${\rm{\{ }}\left. x \right|x \le 0\} $