根据题意得:2-x≠0,
解得x≠2,
故选B.
用所给单词的适当形式填空
1. Let's _________ (sing) this song together.
2. Sam doesn’t want _________ (clone).
3. Scientists can even _________(combine) a plant and an animal.
4. Try_____________(make) a funny story
5. I think it would be fun _________(clone)myself.
烧结厂采用()型结晶器。