在确定土石坝土料压实参数的碾压试验中,以单位压实遍数的压实厚度()者为最经济合理。
A.最大
B.最小
C.等于零
D.无穷小
参考答案:A
We thought there were 35 students in the dining hall, ____, in fact, there were 40.
A.while
B.whether
C.what
D.which
高度近视眼的并发症有以下哪些?()
A.黄斑变性
B.黄斑出血
C.视网膜脱离
D.圆锥角膜
E.巩膜葡萄肿