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【简答题】
下列程序的作用是:将通过键盘输入的小写英文字母转换为大写英文字母并输出。请完善程序。 #include
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皮皮学刷刷变学霸
举一反三
【单选题】The ___ engine is used for alternators and sometimes for main propulsion with a gearbox to provide a propeller of between 90 to 120 rpm.
A.
four-stroke
B.
two-stroke
C.
slow speed
D.
reversible
【简答题】常用的几种导出的逻辑运算为 、 、 、 、 。
【单选题】You are paralleling two alternators and the pointer of the synchroscope slowly stops rotating and remains stopped in one position before the circuit breaker is closed. This would indicate ____.
A.
the synchronoscope is not functioning properly and should be checked
B.
the voltage of the incoming alternator is the same as that of the main switchboard
C.
the incoming alternator is in phase with the switchboard, but the frequency is not the same
D.
the frequency of the incoming alternator is the same as that of the main switchboard
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