驾驶人进入驾驶室前，首先要做什么？（）

A.观察机动车周围情况

B.不用观察周围情况

C.开启车门直接上车

D.注意观察天气情况

You are on watch at sea a man falls overboard on the port side, forward near No. 1 hatch. What of the following should you do first?（）.

A.Call the master

B.Put the helm hard over toward the port side

C.Sound the alarm to arouse all hands

D.Stop the engines