φ(m)等于（）。
A. 集合{1,2…m-1}中奇数的整数的个数
B. 集合{1,2…m-1}中与m互为合数的整数的个数
C. 集合{1,2…m-1}中偶数的整数的个数
D. 集合{1,2…m-1}中与m互素的整数的个数
If a speaker says something like “leftover women” or “bald”, you might experience a strong emotional reaction that can block out your ability to listen, what should you do?
A. Stay calm and remain objective
B. Get extremely angry
Criticize the speaker for saying something “stupid”
D. Shut your ears immediately
微信支付 
支付宝支付