在滑动轴承中,轴承宽度与轴颈直径之比L/d越大,油膜的承载能力()。
A.越大
B.越小
C.不变
D.无法确定
参考答案:A
I looked at it and found that including the wine,the bill ______ $70.
A.arrived at
B.topped at
C.reached to
D.came to
读下图回答。
图中与渭河谷地成因相同的地质构造是()
A.A
B.B
C.C
D.D