He keeps（）at himself in the mirror.

1、Opening the door, he found himself（）by

Opening the door, he found himself（）by a dozen policemen with guns.AconfrontedBmetCfacedDsought

2、During the watch keeping at sea, at ap

During the watch keeping at sea, at appropriate intervals inspection should be made of （）, auxiliary machinery and steering gear spaces by the duty engineer.Athe main propulsion plantBlifesaving jacketsClifeboat engineDstate of emergency generator

3、To keep injured survivors warm in the

To keep injured survivors warm in the water after abandoning a ship，they should（）.Abe placed in the middle of a small circle formed by the...

4、He took（）part in the activity.

He took（）part in the activity.Aan activeBa dynamicCa positiveDenergetic

5、At the age of 16，he worked for______．

At the age of 16，he worked for______．Ahis brotherBhimselfChis fatherDsomeone else

6、In order to keep the oil film on the c

In order to keep the oil film on the cylinder liner during the running-in period, the piston rings are slightly rounded（）Aon both the extern...