2. 外语
  3. The passage mainly discusses the factors leading to plastic bag pollution.. Many food-carrying bags, made from high density pol

The passage mainly discusses the factors leading to plastic bag pollution.. Many food-carrying bags, made from high density pol

admin2009-09-12  69
问题 The passage mainly discusses the factors leading to plastic bag pollution..
Many food-carrying bags, made from high density polyethylene, are extremely difficult to recycle.
选项 A、Y
B、N
C、NG
答案B
解析 参见“Production of Plastic Bags”部分第二段。
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大学英语四级

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