【简答题】往复泵为何要设空气室?对空气室的使用管理上应特别注意什么问题?往复泵打不上水的原因有哪些?
【单选题】Why did Chanel test her clothes on moving models? a She wanted to make sure they looked good. b She wanted to make sure that models could move around easily. c She wanted to make sure the material was...
A.
a She wanted to make sure they looked good.
B.
b She wanted to make sure that models could move around easily.
C.
c She wanted to make sure the material was strong enough.
【判断题】统计表从内容上看可分为主词栏和宾词栏两部分( )
【单选题】They surveyed the area __ the tomb faced south.