2. 外语
  3. A、Cargo. B、Adults. C、Children. D、Chemical substance. D根据文中最后提到“...engineers predict,...could transport cargo...,...carry passeng

A、Cargo. B、Adults. C、Children. D、Chemical substance. D根据文中最后提到“...engineers predict,...could transport cargo...,...carry passeng

admin2013-06-17  103
问题  
选项 A、Cargo.
B、Adults.
C、Children.
D、Chemical substance.
答案D
解析 根据文中最后提到“...engineers predict,...could transport cargo...,...carry passengers...”，可知答案是D。
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大学英语四级

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