单项选择题

一个区域中能够带动整个区域增长的点称为( )。

A.增长极
B．增长带
C．中心
D．原点

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单项选择题

听力原文：M: Would you like to study with us in the library?
W: I'd rather study 'at home.
What does the man mean?
A．He thinks it is better than studying at home.
B．Prefers to study than to go home.
C．He prefers to study at home.

A.
What
B.He
C.
B．Prefers
D.
C．He
E.

多项选择题

下列容器中，哪些属于移动式压力容器（）

A.汽车罐车
B.铁路罐车
C.气瓶
D.罐式集装箱