单项选择题

The chief reason for the population growth isn't so much a rise in birth rates a fall in death rates as a result of improvements in medical care.

A．but
B．or
C．as
D．and
<上一题 目录 下一题>
热门 试题

单项选择题
Some guards were injured in the prisoners' ______ from the jail.
A．breakaway
B．breakdown
C．breakthrough
D．breakup
单项选择题
______ emergency when you are in a lift, you can make a phone call for help.
A．In the event of
B．In the course of
C．In accordance with
D．In association with
相关试题