抛出一枚硬币,有______种结果,分别是______.
硬币有正反两个面,抛出后,正面和反面都可能出现,所以抛出一枚硬币,有两种结果,分别是正面和反面.
故答案为:两,正面和反面.
— Where is my dictionary? I remember I put it here yesterday.
—You it in the wrong place.
A.must put
B.should have put
C.might put
D.might have put
在显示手信号时,凡昼间持手信号旗的人员应将信号旗拢起,左手持绿旗,右手持红旗。