汽油机最大功率比标准值降低()以上,或气缸压力达不到标准的()时需送修。
A.25%、25%
B.25%、75%
C.75%、25%
D.75%、75%
参考答案:B
Did you hear that Jim was robbed during his recent trip to Thailand? Not only _____ his money,but he
was nearly killed. [ ]
A. he lost
B. was he lost
C. he had lost
D. did he lose
胚胎期形成唇裂畸形的时期是()
A.第2~4周
B.第6~8周
C.第12~14周
D.4~5个月
E.6个月以上