What is the one huge problem that we haven’t really solved? [br] There is no dou

游客2023-09-15  22

问题 What is the one huge problem that we haven’t really solved? [br] There is no doubt that environmental regulation ______.

选项 A、is cumbersome
B、produces an effect
C、varies wildly
D、needs to be streamlined

答案 B

解析 细节题。根据题干信息词environmental regulation定位到第五个小标题末句Some environmental regulation may be too cumbersome (麻烦的) and needs to be streamlined--standards can vary wildly between regions—but there isn’t any doubt that environmental regulation actually works,即:虽然有一些麻烦,但是环境规则还是有作用的,故选B。
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