从路边起步进入车流的时候，除了先查看一下这样做是否安全以外，你还必须做什么？（）A、

After the long journey, the Smiths returned home, ____.

A．safe but tired

B．safely but tired

C．safe and tiring

D．safely and tiring

Red-light running has always been regarded as a minor wrong, and so it has never been taken seriously. When the violation becomes habitual, however, a great deal more than a traffic problem is involved.

除非另有指示，值班驾驶员和值班轮机员都应严格执行由（）制定的主机各种转速。

A．船长

B．轮机长

C．轮机长与船长共同商定

D．轮机长与公司机务主管共同

健康小儿，能独坐一会，用手摇玩具，能辨认熟人和陌生人，其年龄约为（）

A.1～2个月

B.2～3个月

C.3～4个月

D.5～6个月

E.7～8个月

定王的六世孙开创东汉王朝，请问这位开国皇帝的姓名。