不明白为什么C不对?
我怎么觉得that可以修饰subsititute 即methane。C说燃烧methane不会产生greenhouse气体,从而反驳object的说法-产生carbon dioxide.
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C关键是focus的地方不对吧,不关心用途,偶觉得 would generally be used as ...还有什么should be 怎样之类...的很可能是迷惑选项,没切中要害
To 10 楼:
怎么会无关呢?发电就得燃烧呀!我想他主要的错误在于反对前提了吧!
"counters the objection made to the proposal " means strengthen the proposal!
C weakens the proposal by saying that the proposal will worse the condition~
C is wrong~
c The methane that is used to generate electricity would generally be used as a substitute for a fuel that does not produce any greenhouse gases when burned.
so d is correct
C无关.C可以作为对proposal的削弱.而不是对objection
关于答案 D Methane in the atmosphere is more effective in blocking the escape of heat from the Earth than is carbon dioxide.这个推论有flaw , 忽略了M燃烧产生的C量。
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