消防头盔如不包括面罩和披肩等附件其质量不应超过()g。
A.200.0
B.500.0
C.600.0
D.1000.0
参考答案:D
—The fishermen should have been warned of the bad weather.
—___, but they didn't listen to it.
A.Yes, they were
B.So were they
C.So should they
D.Yes, they should
(1)如图1所示的弹簧测力计的示数是_________N。
(2)如图2所示,温度计的示数是___________℃。
图1 图2