单项选择题

A、A
B、B
C、C
D、D

你可能感兴趣的试题

单项选择题

(2分38秒--4分12秒)
The measure of male-female equality is usually considered to be___

A．how many women are in such positons as prime minister, CEOs, etc.
B．a much wider range of equally respected choices.
C．Both of them

单项选择题

汽车传动主轴所传递的功率不变，当轴的转速降低为原来的二分之一时，轴所受的外力偶的力偶矩较之转速降低前将（） A.
增为原来的两倍
B.
增为原来的四倍
C.
减为原来的一半
D.
不改变