题干
选择符合图片的句子，将序号写在横线上
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| A. Henry the dog sees a black shape behind him. B. Henry is afraid. C. Henry runs. The black shape runs too. D. Henry stops. The black shape stops. E. Henry likes his new friend. Let's play together! |
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答案(点此获取答案解析）
E,C,B,D,A
3C＋4D反应中，表示该反应速率最快的是 ( )
