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【单选题】
给出下面的代码,哪个叙述是对的 ? ( ) public class Test{ int a = 3; public static void main(String a[]) { System.out.println(a); } }A.
编译时出错
B.
输出 3
C.
输出 0
D.
输出 null
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A.
Giving antonyms.
B.
Renaming the subject.
C.
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D.
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【单选题】Choose the phrase that is closest in meaning to the underlined part. The modulator generates a varying signal at its output which is proportional in some way to the signal appearing across its input t...
A.
which is produced in the same way as the signal
B.
which comes partially out of the signal
C.
which varies in an unknown manner with the signal
D.
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