开车时精力集中，保证炼钢铁块小于40公斤，并有两个凹口，凹口厚度不大于（）mm。
参考答案：45
心前区捶击最多不超过多少次（）。
A.1
B.3
C.2
D.4
E.5
Mike's the equal of his sister ____ intelligence is concerned, but he doesn't work hard at all.[ ]
A. as well as
B. as soon as
C. as far as
D. as long as
