单项选择题
I hereby request permission（）the ship’s main engine for routine maintenance.
A.immobilize
B.to immobilize
C.immobilization
D.immobilizing
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A.yet
B.still
C.already
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I have steerage way. It is said that（）.
A.I am underway
B.I am out of control
C.I am not making way through the water
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单项选择题
I have pleasure in informing you that all safety equipment is in（）working order.
A.full
B.care
C.intentional
D.reasonable
