Motor-propelled lifeboats are required to be fitted with which of the following?______.
A.Compartments for the storage of canned drinking water
B.Ballast tanks to prevent the boat from capsizing
C.An air starter on the diesel engine
D.Auxiliary mechanical propulsion ( Fleming gear )
第1题:
A.autofocus
B.required="required"
C.required
D.autocomplete
第2题:
第3题:
第4题:
接待
A.reception
B.visit
C.require
D.return
第5题:
第6题: