The survivors（）to a floating tree in h

1、In addition to setting the price of a

In addition to setting the price of a product, business firms must decide （） to offer special discount and credit terms to their customers.AifBwhichCwhateverDwhether

2、（） are used to limit the pressure in a

（） are used to limit the pressure in any particular portion and mainly control the pressure after the valve.ARelief valvesBCheck valvesCSafety valvesDReducing valve

3、A yellow signal，floating in the air fr

A yellow signal，floating in the air from a parachute，about 300 feet above the water，indicates that a submarine（）.Awill be coming to periscop...

4、In order to reverse the rotation of a

In order to reverse the rotation of a two-stroke/cycle loop scavenged, direct reversing, propulsion diesel engine, the cam positions must be changed for the （）.Astarting air and fuel pumpsBpiston cooling pumpsCexhaust valvesDall of the above

5、The proper way to correct a mistake in

The proper way to correct a mistake in the logbook is to（）.Aerase the entry and rewriteBdraw several lines through the entry，rewrite，and ini...

6、In the event of a fire, the doors to a

In the event of a fire, the doors to a stair tower must be closed to prevent the spread of fire by （）.AconvectionBconductionCradiationDventilatio