钢丝绳的表面钢丝磨损超过()时,钢丝绳应报废。
A.20%;
B.30%;
C.40%;
D.50%
参考答案:C
—Do you know Ang Lee’s latest film “Life of Pi”?
—Of course, I like it very much. I the film several times.
A.see
B.saw
C.have seen
D.had seen
Sturge-Weber病主要表现为()
A.头痛
B.蛛网膜下腔出血(SAH)
C.癫痫
D.血管杂音
E.缺血症状