键的种类很多，常用的有（）（）、钩头楔键等。
参考答案：普通型平键、半圆键
—Hello? _______________
—Hi, Alice. It's Amy here.
A．Are you Alice?
B．I'm Alice.
C．Are you Alice?
D．This is Alice speaking.
Shanghai is bigger than______in Jiangsu and bigger than______in China.
A．any city, any city
B．any city, any other city
C．any other city, the other cities
D．any other city, any city
