实验结果表明,若以20岁时所需的照度为标准,则60岁为其()。
A.1.5倍
B.2.5倍
C.5.5倍
D.7倍多
参考答案:D
— I went to have the driving test this morning, but I didn’t pass it.
— ___________
A.Luck decides everything.
B.Better luck next time.
C.But you can drive well.
D.You are always unlucky.
冲裁模具零件可分为()、()。