求解呀：PREP-101 在线等

spz316

101.(29937-!-item-!-188;#058&004052)

Many environmentalists, and some economists, say that free trade encourages industry to relocate to countries with ineffective or poorly enforced antipollution laws, mostly in the developing world, and that, in order to maintain competitiveness, rich nations have joined this downward slide toward more lax attitudes about pollution.

(A) that, in order to maintain competitiveness, rich nations have joined this downward slide toward more lax attitudes about pollution

(B) that, for maintaining competitiveness, rich nations join in this downward slide toward more lax attitudes about pollution

(C) that rich nations join this downward slide toward more lax attitudes about pollution because of wanting to maintain competitiveness

(D) that in rich nations, joining this downward slide toward more lax attitudes about pollution is a result of wanting to maintain competition

(E) that wanting to maintain competition is making rich nations join in this downward slide toward an attitude about pollution that is more lax

答案是A
哪位GGJJ帮我解释下答案A用完成时态的道理啊？

CECILIAJC

这个就是理解句意啦~

专家说了两点，一，自由贸易使得industry relocate在反污染法律较弱的发展中国家；二，为了保证竞争力，富裕国家已经加入到这拨放宽治理污染力度的混水中来了。

理解句意就应该明白该用完成时了

pterosaur

两个that 并列 后面的that用现在时，由于并列，首先排除D/E。C“because of wanting”错误。B"for maintaining competitiveness"不如 in order to.