气候变化的主要影响有（）等。
A、海平面上升
B、冰川退缩
C、荒漠化
D、降水普遍增多
参考答案：A, B, C
It shows that____ knowledge of first aid can make a real difference.
A．a
B．the
C．one
D．/
If she doesn't want to go, nothing you can say will her.
A．persuade
B．promise
C．invite
D．support
