2. 职称英语
  3. The passage mainly discusses the factors leading to plastic bag pollution.. [br]

The passage mainly discusses the factors leading to plastic bag pollution.. [br]

游客2024-03-04  40
问题 The passage mainly discusses the factors leading to plastic bag pollution.. [br] The petrol-based bags, though harmless to the environment, cost too much in manufacture to become widely used.
选项 A、Y
B、N
C、NG
答案 B
解析 根据“Greenhouse Gases”部分第二段，生产成本昂贵的环保型塑料袋是以corn为生产原料，而非petrol-based。
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