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【简答题】
随机产生 100 个学生的成绩,计算学生的平均成绩,并统计高于平均成绩的学生人数。 提示: 1 )声明数组,并实例化。 2 )使用 Random 类的实例方法 nextInt ,产生随机成绩。 完成数组的输入。 3 )遍历数组,求和,求平均值。 4 )遍历数组,求高于平均分的人数。 5 )显示结果。
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举一反三
【单选题】An is an officer in the army or navy who helps a more senior officer
A.
excise officer
B.
marshal
C.
aide-de-camp
【单选题】The officer in charge of the navigational watch shall not hand over the watch to the relieving officer if ____.
A.
there is reason to believe that the latter is not capable of carrying out the watch keeping duties effectively
B.
the ship is fitted with automatic steering
C.
there is daylight or darkness
D.
at no time shall the bridge be left unattended
【单选题】The officer in charge of the engineering ______ the watch to the reliving officer if there is reason to believe that the latter is obviously not capable of carrying out the watch-keeping duties effect...
A.
shall take over
B.
shall not take over
C.
shall hand over
D.
shall not hand over
【单选题】There is one cabin for the Pilot and another one for the Chief Officer.Between them is the officer`s mess room
A.
The Chief Officer`s cabin is next to the Pilot`s
B.
The Chief Officer`s cabin is next to the mess-room
C.
The Chief Officer`s cabin is below the Pilot`s
D.
The Chief Officer`s cabin is below the mess-room
【简答题】A．A customs officer. B．A police officer. C．A car dealer. D．A school teacher.
【单选题】There is one cabin for the Chief Officer and another one for the Pilot.Between them is the officer`s mess room.
A.
The Chief Officer`s cabin is opposite the mess room
B.
The Chief Officer`s cabin is opposite the Pilot`s
C.
The Chief Officer`s cabin is next to thr mess room
D.
The Chief Officer`s cabin is next to the Pilot`s
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