When you doubt the existence of risk of collision, ___ . A. such risk shall be deemed to exist B. such risk shall not be deemed to exist C. you should keep your course and speed D. you needn‘t take any action to avoid collision with any vessel

单选题

WHEN YOU PUSH THE AGENT PUSHBUTTON,THE FIRE EXTINGUISHER CARTRIDGE( ) .

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单选题

When you doubt the existence of risk of collision, ___ .A. such risk shall be deemed to existB. such risk shall not be deemed to existC. you should keep your course and speedD. you needn‘t take any action to avoid collision with any vessel

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单选题

When you write a cheque,the bank will______you 2 dollars.

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单选题

When you install the part, make sure that the rounded edge is against the structure.

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单选题

Are you going out? Yes, please lock the door when you ___ .

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