After the clothes were dry outside, she them and put them in her suitcase.
A:threw
B:sold
C:folded
D:bought
一只水鸟在平静的水面上飞过,当水鸟距离水面3m时,它在水面的“倒影”是____ (填“实”或“虚”)像.
沸腾是在液体 ____ 和液体内部同时进行的汽化现象.