转子泵、齿轮泵、螺杆泵等均后( )泵。
A.动力式B.往复C.回转D.旋涡
参考答案:C
_______ the tower building,where you can see the whole city.
A.Standing on the top of
B.If you climb to
C.When you reach the top of
D.Get to the top of
宗教组织属于()。
A.首要
B.次要
C.向往
D.厌恶