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问题
填空题
单位时间内流经风机的()称容积流量。
答案
参考答案:气体容积
阅读理解
Morning
Afternoon
Saturday
April 25th
Sunday
April 26th
Monday
April 27th
Tuesday
April 28th
Wednesday
April 29th
Thursday
April 30th
Friday
May 1st
cloudy
rainy
sunny
windy
小题1:It changed from a cloudy morning to a sunny afternoon on
.
A.Friday
B.Saturday
C.Monday
D.Thursday
小题2:The sunniest days were
.
A.Tuesday and Friday
B.Saturday and Tuesday
C.Monday and Wednesday
D.Tuesday and Wednesday
小题3: On Sunday it would probably be the best to
.
A.go to the beach for a swim
B.stay at home and read a good book
C.take the dog for a walk
D.go on a picnic
小题4:Friday, May 1st, was
.
A.rainy in the morning and in the afternoon
B.sunny all day
C.sunny in the morning and cloudy in the afternoon
D.windy and sunny all day
小题5:Joan flew her kite on a day that was windy in the morning but wet in the afternoon. Joan probably did this on _________.
A.Saturday, April 26th
B.Monday, April 28th
C.Tuesday, April 29th
D.Thursday, April 30
th
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单项选择题
为避免径向夹紧对孔加工精度的影响,薄壁工件可采用()方式。
A.径向夹紧
B.轴向夹紧
C.挤压
D.弹性
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