单项选择题
A.Smoking B.Drug and alcohol abuse C.Fruit D.Vegetables
Malacca Strait is 805 km（）and（）from 64 km in the S to 2...
单项选择题Malacca Strait is 805 km（）and（）from 64 km in the S to 257 km in the N.
A.long, widens B.long, wide C.length, widens D.length, wide
It is customary in shipping practice to quote freight r...
单项选择题It is customary in shipping practice to quote freight rates（）weight or measurement,ship’s option.
A.on the basis of B.as a result of C.arise from D.come into being
When underway in a channel,you should keep to the（）.A.m...
单项选择题When underway in a channel,you should keep to the（）.
A.middle of the channel B.starboard side of the channel C.port side of the channel D.side of the channel that has the widest turns
