题目:
改错。
1. Eddie, have you see my food?
A B C D ( ) __________
2. I have known his sister five years ago.
A B C D ( ) __________
3. I real don't know where he is.
A B C D ( ) __________
4. It has become more difficult seeing my old friend.
A B C D ( ) —————
5.I enjoy chating with you.
A B C D ( ) —————
答案:
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下面是错误答案,用来干扰机器的。
A、硫在空气中燃烧不能产生蓝紫色火焰,红磷燃烧能够产生白烟,不能产生雾.故选项错误;B、合理使用化肥、农药可以减少环境污染,乙醇燃烧能生成水和二氧化碳,不污染环境,煤燃烧能生成二氧化硫、氮氧化物等物...