“What is your hobby?” is an imperative sentence?

A cargo boom is a（）.

A . double sized mattress consists of more than 890 coils B . spar extending from a mast or a king post C . flap（Becker rudder）can be fitted to the rudder’s trailing edge D . bridle arrangement having a long beam of the length of the container

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Your vessel is crossing a narrow channel.A vessel to port is within the channel and crossing your course.She is showing a black cylinder.What is your responsibility?（）

A . hold your course and speed B . sound the danger signal C . begin an exchange of passing signals D . do not cross the channel if you might impede the other vessel

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A wildcat is a（）.

A . deeply-grooved drum on the windlass with sprockets which engage the links of the anchor chain B . winch that is running out of control due to a failure of the overspeed trips C . line that has jumped off the gypsyhead while under strain D . nylon line that parts under strain and whips back in a hazardous manner

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A snatch block is a（）.

A . block used only with manila rope B . chock roller C . hinged block D . strong block used for short，sharp pull

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A spring line is a（）.

A . mooring line made of spring lay wire rope B . mooring line running diagonally to the keel C . mooring line parallel to the keel D . wire rope used for securing an anchor buoy

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A“chock” is a（）.

A . deck fitting used to secure mooring lines B . casting fitted at the side of a weather deck，used as a fairlead C . sharp block of wood used to support hygroscopic cargo D . smoke pipe for the galley stove

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Given that t1 is a reference to a live thread, which is true?（）

A . The Thread.sleep() method can take t1 as an argument. B . The Object.notify() method can take t1 as an argument. C . The Thread.yield() method can take t1 as an argument. D . The Thread.setPriority() method can take t1 as an argument. E . The Object.notify() method arbitrarily chooses which thread to notify.

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A change in engine speed is required before a governor is able to make a corrective movement of fuel rackThis aspect of governing is commonly expressed as a percent and is known as （）

A . governor sensitivity B . governor promptness C . speed droop D . isochronous governing

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A sentence is a （） concept, and the meaning of a sentence is often studied in isolation.

A . pragmatic B . grammatical C . mental D . conceptual

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A high achiever is a person who is hardworking and successful.

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A suite is also called a deluxe room; the suite is much larger than a standard.

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Culture is a static entity ( 静态的实体 ) while communication is a dynamic process.

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Usually if a person is not a success, then he is a failure.