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srand(time(NULL)); // 初始化随机种子
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Mosquitos began biting humans more than a million years ago | An analysis of 38 modern mosquitoes’ DNA suggests an ancestral mosquito species developed a preference for feeding on early humans between 2.9 and 1.6 million years ago,，这一点在爱思助手下载最新版本中也有详细论述
You think you’re locked out of the housing market? The Chicago Bears have been renting since Warren G Harding was president.。关于这个话题，WPS官方版本下载提供了深入分析