对于列车运行速度为120km/h及以上线路,打磨后的最大剩余波深不得超过()。
A、0.3mm
B、0.4mm
C、0.5mm
D、0.6mm
参考答案:A
----Do you think Tim did well in the English speech contest?
----______. He won the first place.
A.He couldn’t have done better.
B.He played naturally
C.He was not nervous at all
D.I couldn’t agree more
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