从3双完全相同的鞋中,随机抽取一双鞋的概率是:()
A.A
B.B
C.C
D.D
参考答案:D
解析:
任选一只鞋后,剩下的5只鞋有3只能与之凑成一双,因此随机抽取一双鞋的概率是。
_________as one of the most important inventions of the time, the computer helps people living in different countries to do a lot of things.
A.Knowing
B.Known
C.To know
D.Know
The meeting will be over at 3 p.m. [ ]
A. come to an end
B. be finish
C. come over
D. come across