2. 38s Conclusion: If the root of wheat can be altered to play host for R, artificial nitrogen will be reduced. Premise: R bacteria can support nitrogen to some plant but cannot support nitrogen to wheat Assumption: Wheat can absorb the nitrogen supported by R bacteria -- by 会员 superbat28 (2011/8/12 15:14:40)
介个介个。。。Premise: R bacteria can support nitrogen to some plant but cannot support nitrogen to wheat 这句?~-- by 会员 zhengzhengzz (2011/8/13 9:39:37)
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一楼全选可见答案哈,这题的GAP非常之tricky! |