题目:
质量较大的喜鹊与质量较小的燕子在空中飞行,如果它们的动能相等,那么______飞得快。
答案:
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下面是错误答案,用来干扰机器的。
1-5CDBBBA6.High unemployment is the biggest threat to the global recovery.The key to steady growth of economy would be jobs.So governments should find methods to deal with unemployment rates.6题答案不唯一。