Is it safe（）a rocket?

A、to shoot

B、to fire

C、to let go

D、to send to sky

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更多“Is it safe（）a rocket?”相关的问题

第1题

[单选题] A man aboard a vessel，signaling by raising and lowering his outstretched arms to each side，is indicating（）.

A、danger，stay away B、all is clear，it is safe to pass C、all is clear，it is safe to approach D、a distress signal

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第2题

[单选题] A man aboard a vessel，signaling by raising and lowering his outstretched arms to each side，is indicating（）.

A、danger，stay away B、all is clear，it is safe to pass C、all is clear，it is safe to approach D、a distress signal

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第3题

[单选题] A vessel proceeding along the course of a narrow channel shall keep as near to the outer limitof the channel which lies on her starboard side as it is safe and practicable.Which one of the followings does the statement express?（）.

A、A vessel shall proceed near the other vessel on her starboard side on the narrow channel since it is safe and practicable B、A vessel shall avoid proceeding near the starboard outer limit of a narrow channel as long as it is safe and practicable C、A vessel shall avoid proceeding along the channel because it is not safe and practicable D、A vessel shall proceed near the starboard outer limit of a narrow channel to the degree in which it is safe and practicable

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第4题

[单选题] Before welding is permitted on a fuel tank, it must be certified or declared （）

A、safe for becoming rounded B、safe for hot work C、not safe for personnel D、not safe for hot work

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第5题

[] Carbon dioxide as a fire fighting agent has which advantage over other agents?（）.

A、A.It causes minimal damage B、B.It is safe for personnel C、C.It is cheaper D、D.It is most effective on a per unit basis

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第6题

[单选题] It is apparent that there was not sufficient depth of water（）and I claim that the estimated arrival draft as radioed to the agent to report to you was a close one.

A、for my vessel crossing safely B、my vessel is to cross safely C、for my vessel to cross safely D、for my vessel's crossing safely

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第7题

[] After crating a mksysb, what is the most important procedure that should be followed?（）

A、A.List the files and verify it is bootable B、B.Make sure it is labeled and store it in a safe place. C、C.Make sure it is write-protected and labeled. D、D.Look at the output of the mksysb command to verify it completed successfully.