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第1题

已知a为整型变量，那么与表达式a!=0真假值情况相同的表达式有哪些?______ A、a＞0||a＜0 B、a C、!a==0 D、!a
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第2题

The first popularly chosen president has ____________ the political representatives over the slow pace of economic chang
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第3题

In the advanced course students must take performance tests at monthly ______________. A. gaps B. intervals C. len
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第4题

______you choose, make sure that it is a good one. A. What B. Wherever C. Whichever D. Which
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