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【简答题】
理想变压器如图所示,它的电压电流关系是, (A、 B、 C、 D、 )。 (A、 B、 C、 D、 )。
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【单选题】若已定义byte[] x={1,2,3,4};其中0<=k<=3,则x数组元素错误的引用是()。< /div>
A.
x[5-3]
B.
x[k]
C.
x[k+5]
D.
x[0]
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相关题目：
【单选题】若已定义byte[] x={1,2,3,4};其中0<=k<=3,则x数组元素错误的引用是()。< /div>
A.
x[5-3]
B.
x[k]
C.
x[k+5]
D.
x[0]