男，3岁，出生时正常，母乳喂养，5个月后智能渐低后，头发变黄，肤色变白，多动，

下列哪些作家曾担任过“左联”的主要领导工作？（）

A.夏衍

B.冯雪峰

C.郁达夫

D.冰心

E.何其芳

习惯上规定（）的定向运动方向作为电流流动的方向。

牛膝来自（）科。

Electronic mail, or mail, as it is known to its many fans, has been around for over two decades. Typically, email systems support five basic functions, as described below. (41) refers to the process of creating messages and answers. (42) refers to moving messages from the originator to the recipient. (43) has to do with telling the originator what happened to the message. Was it rejected Was it lost (44) incoming message is needed. So people can read their email. (45) is the final step and concerns what the recipient does with the message after receiving it.

（42）是（）

A.Composition

B.Transfer

C.Reporting

D.Displaying

网点在办理业务时，对“实名制”之前开户、未预留客户身份信息的，不需补录客户资料。