汽油车双怠速排气污染物检验方法中的高怠速是指（）倍发动机额定转速。 A.l B.0.
题型：单项选择题
问题：
汽油车双怠速排气污染物检验方法中的高怠速是指（）倍发动机额定转速。
A.l
B.0.8
C.0.7
D.O.5
题型：单项选择题
选词填空
从方框中选择正确的单词并用其适当形式完成下面的句子。
小题1:How many _______ are there in the factory?
小题2:Mr White often goes for a walk with his _________ dog.
小题3:Have you _________ dinner?
小题4:We like our Chinese teacher, so we listen to her lessons ________.
小题5:There are two books on the desk. One is mine, the other is ________.
小题6:October is the _________ month of a year.
小题7:If we don’t protect the environment, our future will be _______.
小题8:________ you for your help, it’s very kind of you.
小题9:We should stop the factory from ________ the river.
小题10:Paper________ by Cai Lun in Han Dynasty.