用温度计测液体的温度有以下几种说法：①使用前应先观察它的量程和认清分度值;②测量时使温度计的玻璃泡与被测液体充分接触；③读数时应在温度计的示数稳定后读数；④读数时温度计的玻璃泡不一定留在被测液体中．其中正确的是( )
A：①②③④
B：①③
C：②④
D：①②③
have, at, like, usually， watch, homework, after, play, come
I have a friend. His name is Li Daming. He often gets up ____ six o'clock in the morning. He ____ breakfast at seven. He goes to school five days a week. After school，he ____ plays games for half an hour. Look! What is he doing？He is ____ basketball. In the evening he does his ____ and he likes listening to music. He often ____TV for half an hour____ he finishes his homework. He goes to bed at ten o'clock. Do you ____ him?
miáo huì
dùn shí
zhǎn xīn
kǒng lóng
____
下列有关中国近代教育和科学技术成就的表述，不正确的是( )
