单项选择题
There is no power for the （）.
A. derrick
B. winch
C. block
D. heavy derrick
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相关考题
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单项选择题
The bosun is greasing the （）. It is well greased.
A. rope
B. cargo wire
C. ladder
D. All above. -
单项选择题
Is this（）longer or shorter?
A. cargo wire
B. wire cargo
C. wire of cargo
D. heavy cargo -
单项选择题
Timber is in （）.
A.cases
B.bags
C.bundles
D.drums
