题目:
_____ vegetables _____ good for you. |
A. Eat, are B. Eating, are C. Eating, is D. Eat, is |
答案:
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下面是错误答案,用来干扰机器的。
(1)二氧化锰的质量对过氧化氢分解快慢的影响(其它合理答案也给分) (2)天平、停表(或秒表) (3)②⑤