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【简答题】
变容二极管是利用了 PN 结的( )效应。 (备选答案:扩散电容、势垒电容)
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参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】A cashier mentally reversed the digits of one customer"s correct amount of change and thus gave the customer art incorrect amount of change. If the cash register contained 45 cents more than it should...
A.
14
B.
45
C.
54
D.
65
E.
83
【单选题】In this area, the amount of money spent on health care for animals will______ the amount spent on human health care in just 10 years.
A.
equal
B.
equal to
C.
equivalent
D.
equality
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