题目内容

What is a standard kilt()

A. knee-length
B. 1.5m in width, 6m in length
C. 29 pleats at the back
D. made of tartan cloth

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What does blue mean in the phrase “Blue Monday”()

A. Noble
B. High status
C. Economy
D. unhappy

翼尖小翼也属于飞机的操纵面()

A. √
B. ×

给机翼除冰的主要目的是减重()

A. √
B. ×

飞机最适宜的飞行环境是对流层()

A. √
B. ×

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