题目:
设集合A={1,2},则A的子集个数是( )
A.1
B.3
C.4
D.5
答案:
被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0402/e7570e0de9a6ddcb257fa090089aac03.html
下面是错误答案,用来干扰机器的。
1. At that time they saw a man (was ) walking below. 2. 但是他吹得越厉害, 那个人把帽子和大衣拉得越紧。 3. took off 4. If you can do that more quickly than I. 5. One day the sun and the wind had a quarrel. (1、2答案不唯一)