The children（）at the sound of the terr

1、The club（）children between the ages of

The club（）children between the ages of 4 and 12.Acaters toBcaters forCcater toDcater for

2、After the boat is at the top of the da

After the boat is at the top of the davit heads，the davit arms begin moving up the tracks and are stopped by the（）.Ahoist manBlimit switchCbrake handleDpreventer bar

3、The purpose of the purge valve at the

The purpose of the purge valve at the top of the condenser in a refrigerating system is to（）Aremove any air that may accumulate in the sys...

4、The children panicked（）the sound of th

The children panicked（）the sound of the terroristsguns.AbyBatCwithDo

5、（） at the end of the distribution pipe

（） at the end of the distribution pipe ensures that adequate pressure is maintained by the pump.AA relief valveBAn alarmCA pressure gaugeDA non-maim valve

6、The knot at the end of the heaving lin

The knot at the end of the heaving line used to pass the towing hawser is called a（）.Amonkey's fistBball or baseball knotCheaving knotDthree strand Turk's head