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【单选题】
关于DriverManager和DataSource接口中getConnection()方法的区别,解释正确的是
A.
前者需要close(),而后者不需要close()
B.
前者的close()是释放Connection,而后者的close()只会把Connection归还给连接池
C.
两者没有区别
D.
DataSource的getConnection()每次创建新的数据库链接
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举一反三
【单选题】On a vessel, multiplying a load’s weight by the distance of the load’s center of gravity above the baseline results in a(n) ______.
A.
transverse moment
B.
vertical moment
C.
righting moment
D.
inclining moment
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【简答题】full container load
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【单选题】一名球员接球后双脚同时落地,()脚为中枢脚
A.
左脚
B.
双脚任意一脚
C.
右脚
查看完整题目与答案
【判断题】When a piece of materialis subjected to a load, it will deform in the direction ofthe load only.
A.
正确
B.
错误
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【单选题】能有效防止仓虫产生的氧气浓度应为:
A.
25%以下
B.
8%-25%
C.
8%以下
D.
20%
E.
8%以上
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【单选题】What does MBDD mean on the load waterline mark ()_.
A.
Timber tropical load waterline
B.
Timber summer load waterline
C.
Timber winter load waterline
D.
Timber winter North Atlantic load waterline
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【单选题】在篮球比赛中,一名球员接球后双脚同时落地,_ _脚为中枢脚
A.
左脚
B.
双脚任意一脚
C.
右脚
查看完整题目与答案
【单选题】_______ is not a static load
A.
Actual weight of the ship’s structure, outfitting, equipment and machinery
B.
Ballast load
C.
Cargo load
D.
Slamming and sloshing load
查看完整题目与答案
【简答题】请配对如下常见电力系统符号与名称。A. B. C. D. E.
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【单选题】Aboard a vessel, multiplying a load’s weight by the distance of the load’s center of gravity from the mid-ship section results in the load’s ______.
A.
LCG
B.
longitudinal moment
C.
righting moment
D.
inclining moment
查看完整题目与答案
相关题目:
【单选题】On a vessel, multiplying a load’s weight by the distance of the load’s center of gravity above the baseline results in a(n) ______.
A.
transverse moment
B.
vertical moment
C.
righting moment
D.
inclining moment
查看完整题目与答案
【简答题】full container load
查看完整题目与答案
【单选题】一名球员接球后双脚同时落地,()脚为中枢脚
A.
左脚
B.
双脚任意一脚
C.
右脚
查看完整题目与答案
【判断题】When a piece of materialis subjected to a load, it will deform in the direction ofthe load only.
A.
正确
B.
错误
查看完整题目与答案
【单选题】能有效防止仓虫产生的氧气浓度应为:
A.
25%以下
B.
8%-25%
C.
8%以下
D.
20%
E.
8%以上
查看完整题目与答案
【单选题】What does MBDD mean on the load waterline mark ()_.
A.
Timber tropical load waterline
B.
Timber summer load waterline
C.
Timber winter load waterline
D.
Timber winter North Atlantic load waterline
查看完整题目与答案
【单选题】在篮球比赛中,一名球员接球后双脚同时落地,_ _脚为中枢脚
A.
左脚
B.
双脚任意一脚
C.
右脚
查看完整题目与答案
【单选题】_______ is not a static load
A.
Actual weight of the ship’s structure, outfitting, equipment and machinery
B.
Ballast load
C.
Cargo load
D.
Slamming and sloshing load
查看完整题目与答案
【简答题】请配对如下常见电力系统符号与名称。A. B. C. D. E.
查看完整题目与答案
【单选题】Aboard a vessel, multiplying a load’s weight by the distance of the load’s center of gravity from the mid-ship section results in the load’s ______.
A.
LCG
B.
longitudinal moment
C.
righting moment
D.
inclining moment
查看完整题目与答案