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【判断题】
数组元素可以用下标表示,也可以用指针表示。A.
正确
B.
错误
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参考解析：
知识点：
皮皮学刷刷变学霸
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【单选题】互感器检定中使用的电源及调节设备，应保证具有足够的容量及调节细度，并应保证电源的频率为（），波形畸变系数不得超过5%。
A.
50Hz
B.
51±0.2Hz
C.
51±0.5Hz
D.
51±0.1Hz
【单选题】互感器检定中使用的电源及调节设备,应保证具有足够的容量及调节细度,并应保证电源的频率为_,波形畸变系数不得超过5%。
A.
50Hz
B.
50士0.2Hz
C.
50士0.5Hz
D.
50士0.1Hz
【单选题】—I saw you come to school by bus this morning. —Oh, I _______ come to school by bus, but it is raining today.
A.
sometimes
B.
always
C.
hardly
D.
usually
【单选题】How did it that the child dropped out of school?
A.
come in
B.
come about
C.
come across
D.
come on
【单选题】I ______ an old school friend in Oxford Street this morning.
A.
come into
B.
come across
C.
come out
D.
come off
【单选题】— I saw you come to school by bus this morning. — Oh, I come to school by bus, but it is raining today. [ ]
A.
hardly
B.
always
C.
sometimes
D.
usually
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