下列关于股票风险性特征的说法,错误的是
A、风险本身是一个中性概念,但是,高风险一般对应着高收益,因此投资者一般喜欢投资那些风险性较高的股票Aftersomanydayswithoutrain,thegroundquickly________thelittlerainthatfelllastnight.
Themanageriscallingona______customertryingtotalkhimintosigningthecontract.
________somanypeopleintheUnitedStatesbeenoutofworkastoday.
Idon'tknowhowwecanmake________onthetimetableforanymorecourses.
随机变量X的概率分布Y表示X被3除的余数,则E(Y)=______.