符合钢丝绳报废标准的有()
A、个别部分轻微锈蚀
B、整股断裂
C、钢丝绳表层磨损或锈蚀量达40%时
D、钢丝绳直径减小量达7%
参考答案:B, C, D
While the soldier’s idea was interesting, the system was too difficult to be ____.
A.of practical use
B.practical usefully
C.practice use
D.practice used
汉朝人赵宾认为“箕子”是()。
A.人名
B.荄兹
C.荄子
D.其子