2. 职称英语
  3. What is the one huge problem that we haven’t really solved? [br] Which year is t

What is the one huge problem that we haven’t really solved? [br] Which year is t

游客2023-09-15  79
问题 What is the one huge problem that we haven’t really solved? [br] Which year is the fewest in violation of federal smog standards in Los Angeles?
选项 A、1976
B、1979
C、1990
D、2004
答案 D
解析 细节题。根据题干信息词the fewest和Los Angeles定位到第二个小标题第三段末句Between1976and 1990，the Los Angeles area averaged some 150 days per year in violation of federal smog standards: in 2004, that figure dropped to just 27 violation days，the fewest ever for that city，即：2004年违背联邦烟雾标准的日子最少，故选D。
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