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.
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Athat, in order to maintain competitiveness, rich nations have joined this downward slide toward more lax attitudes about pollution
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Bthat, for maintaining competitiveness, rich nations join in this downward slide toward more lax attitudes about pollution
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Cthat rich nations join this downward slide toward more lax attitudes about pollution because of wanting to maintain competitiveness
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Dthat in rich nations, joining this downward slide toward more lax attitudes about pollution is a result of wanting to maintain competition
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Ethat wanting to maintain competition is making rich nations join in this downward slide toward an attitude about pollution that is more lax
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正确答案: A