5.in the form of ...
6.keep balance of the nature
7.response to
8.conduct an experiment
9.or...or
10.used to
11.be supposed to
12.in recent years
13.scientific experiment
14.make/draw a conclusion
6.keep balance of the nature
7.response to
8.conduct an experiment
9.or...or
10.used to
11.be supposed to
12.in recent years
13.scientific experiment
14.make/draw a conclusion
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第1个回答 2013-12-07
5. in the form of 6. to keep a balance of nature
7.? 8. to do a test
9.either or 10. used to
11. should be/suppose to be 12. in recent years
13.science experiment 14. come a conclusion
7.? 8. to do a test
9.either or 10. used to
11. should be/suppose to be 12. in recent years
13.science experiment 14. come a conclusion
第2个回答 2013-12-07
7.react with (这个是正解)
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