信贷客户的身份识别包括（）。A.客户经理调查申请人是否具备借款主体资格。 B.核对客

直线回归方程的适用范围，一般以下列哪项的取值范围为限（）。

A．自变量X

B．应变量y

C．估计值

D．±1.96S

E．

多形性低度恶性腺癌的多形性是指（）

A.组织学结构的多形性

B.肿瘤细胞学的多形性

C.多种间叶成分构成

D.由上皮和间叶两种成分混合发生

E.生物学行为上的差异

从鸦片战争到“五四”运动的近80年间，我国书籍从传统的木刻为主的印制方式向石印、铅印发展，由小生产经营方式向近现代新书业的经营方式转变。

短文改错。

下面短文中有10处语言错误。请在有错误的地方增加、删除或修改某个单词。

增加：在缺词处加上一个漏字符号（∧），并在其下面写出该加的词。

删除：把多余的词用斜线（\）划掉。

修改：在错的词下划一横线，并在该词下面写上修改后的词。

注意：

1. 每处错误及其修改均仅限一词；

2. 只允许修改10处，多者（从11处起）不计分。

I'm very glad to have received the letter you sent me two weeks before. I have been thinking about the

question you ask me. In my opinion, you should come back after finished your studies abroad. For one

reason, that you are studying is badly needed nowadays in our country. It will be quite easily for you to

find a good job. In fact, I know a few big company in our city hope to hire people like you. For other

reason I think it will be too more convenient for you to look after your parents as they are getting old.

And this is only my point of view. It is up to you to make right choice.

_______________________________________________________________________

对称三相电路中，三相总有功功率P=（）。