2. 外语
  3. Compared with large aircraft, small airplanes are not as streamlined and hence are less efficient.

Compared with large aircraft, small airplanes are not as streamlined and hence are less efficient.

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问题 Compared with large aircraft, small airplanes are not as streamlined and hence are less efficient.
选项 A、at a glance
B、to a measurable degree
C、in most cases
D、as a result
答案D
解析
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