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【单选题】

With UMS, when the engine room is unwatched () will control the main engine.

A、the bridge officer on watch

B、the chief engineer

C、the duty engineer

D、the duty motorman

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第2题

A、<em>Withem> <em>theem> wind from ahead  B、<em>Withem> <em>theem> wind off <em>theem> port beam  C、<em>Withem> <em>theem> wind off <em>theem> starboard beam  D、<em>Withem> <em>theem> wind from abaft <em>theem> beam  

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第3题

A、A. <em>Theem> route is not announced.  B、B. <em>Theem> route is announced <em>withem> community 90:1 added.  C、C. <em>Theem> route is announced <em>withem> community 100:1 added.C.<em>Theem> route is announced <em>withem> community 100:1 added.  D、D. <em>Theem> route is announced <em>withem> communities 90:1 and 100:1 added.D.<em>Theem> route is announced <em>withem> communities 90:1 and 100:1 added.  

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第5题

A、<em>Theem> main query executes <em>withem> <em>theem> first value returned by <em>theem> subquery.  B、<em>Theem> main query executes <em>withem> <em>theem> last value returned by <em>theem> subquery.  C、<em>Theem> main query executes <em>withem> all <em>theem> values returned by <em>theem> subquery.  D、<em>Theem> main query fails because <em>theem> multiple-row subquery cannot be used <em>withem> <em>theem> comparison operator.  E、You cannot define a multiple-row subquery in <em>theem> WHERE clause of a SQL query.  

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第6题

A、<em>Theem> main query executes <em>withem> <em>theem> first value returned by <em>theem> subquery.  B、<em>Theem> main query executes <em>withem> <em>theem> last value returned by <em>theem> subquery.  C、<em>Theem> main query executes <em>withem> all <em>theem> values returned by <em>theem> subquery.  D、<em>Theem> main query fails because <em>theem> multiple-row subquery cannot be used <em>withem> <em>theem> comparison operator.  E、You cannot define a multiple-row subquery in <em>theem> WHERE clause of a SQL query.  

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第7题

A、<em>Theem> main query executes <em>withem> <em>theem> first value returned by <em>theem> subquery.  B、<em>Theem> main query executes <em>withem> <em>theem> last value returned by <em>theem> subquery.  C、<em>Theem> main query executes <em>withem> all <em>theem> values returned by <em>theem> subquery.  D、<em>Theem> main query fails because <em>theem> multiple-row subquery cannot be used <em>withem> <em>theem> comparison operator.  E、You cannot define a multiple-row subquery in <em>theem> WHERE clause of a SQL query.  

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第8题

A、<em>Theem> movement of all segments to a target tablespace <em>withem> a higher degree of compression, on a different storage tier, <em>whenem> <em>theem> source tablespace exceeds TBS PERCENT USED  B、Setting <em>theem> target tablespace to read-only  C、<em>Theem> movement of some segments to a target tablespace <em>withem> a higher degree of compression, on a different storage tier, <em>whenem> <em>theem> source tablespace exceeds TBS PERCENT USED  D、Setting <em>theem> target tablespace offline  E、<em>Theem> movement of some blocks to a target tablespace <em>withem> a lower degree of compression, on a different storage tier, <em>whenem> <em>theem> source tablespace exceeds TBS PERCENT USED  

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第9题

A、break <em>theem> water surface <em>withem> your hands <em>whenem> diving head-first  B、use your hands to hold your knees to your chest  C、cover your eyes <em>withem> one hand while pinching your nose shut and covering your mouth <em>withem> <em>theem> o<em>theem>r  D、enter <em>theem> water at <em>theem> bow or stern on <em>theem> windward side of <em>theem> vessel  

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