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【单选题】

It is desirable that the airplane ______ as light and fast as possible.
A．be made

B．is made
C．were made
D．has been made
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根据网考网移动考试中心的统计，该试题：

66%的考友选择了A选项

29%的考友选择了B选项

3%的考友选择了C选项

2%的考友选择了D选项

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