泵机联轴器端面上下左右间隙差不得大于（）mm。
A、0.01
B、0.1
C、0.2
D、0.3
参考答案：D
中国的美学体系大致分为三中道家美学、儒家美学、释家美学。
Although the working mother is very busy,she still a lot of time to her children. [ ]
A.devotes
B.spends
C.offers
D.provides
