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【单选题】
The supporters of lottery argue that______.A.
it is a waste of hope to buy lottery to become rich
B.
anyone can expect to become wealthy by buying lottery
C.
it is inexpensive to fantasize being rich by buying lottery
D.
only those who can't do math waste their money on lottery
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【单选题】—The article was very easy, wasn't it? —Yes, but I don't think ________ can understand it. [ ]
A.
somebody
B.
anybody
C.
everybody
D.
nobody
【简答题】已知x 1 ，x 2 是一元二次方程2x 2 -2x+m+1=0的两个实数根。 （1）求实数m的取值范围； （2）如果x 1 ，x 2 满足不等式7+4x 1 x 2 >x 1 2 +x 2 2 ，且m为整数，求m的值。
【简答题】如果2x 2 +1与4x 2 -2x-5互为相反数，求出x的值．
【单选题】利用email进行主动客户服务包括主动向客户提供企业最新的信息和()
A.
了解客户的需求并将其整合到营销组合中
B.
等待客户询问
C.
给客户疯狂发送广告
D.
贩卖客户信息