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【判断题】
一台变压器的变压比为3：2,当它的一次侧接到660V的交流电源时,二次侧输出的电压是220V。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
举一反三
【判断题】The numbers ending in - have the stress on the first syllable, while the numbers ending in -ty have the stress on the last syllable. ( )
A.
正确
B.
错误
【单选题】However, the new law, once passed, will ______ the Bridlington agreement illegal by giving workers the right to join unions of their choice.
A.
convert
B.
cancel
C.
eliminate
D.
render
【单选题】However, the new law, once passed, will ______ the Bridlington agreement illegal by giving workers the right to join unions of their choice.
A.
convert
B.
render
C.
cancel
D.
eliminate
【单选题】While the chairman was giving a talk at the meeting,some workers at the back paid no attention and kept_________.
A.
Enattering
B.
Saying
C.
Telling
D.
Mentioning
【简答题】编程分辨率是指程序中可以设定的 ,又称 。
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