单项选择题

The passage implies that reversing the muscle-bone movement used to bend an arm requires______.

A．the relaxation of two sets of muscles
B．the use of different muscles
C．a different kind of tissue
D．the enlargement of the muscle
<上一题 目录 下一题>
热门 试题

单项选择题
The point at which a muscle is attached to the bone that movies is called the______.
A．source
B．insertion
C．tendon
D．diaphragm
单项选择题
One possible reason why women have better memories than men is that______.
A．they have a wider range of interests
B．they are more reliant on the environment
C．they have an usual power of focusing their attention
D．they are more interested in what's happening around them
相关试题