题目内容
(请给出正确答案)
[单选题]
当设计的飞机用于低速飞行时,通常会采用涡轮螺旋桨发动机()
A.Whenanairplaneisdesignedtoflyatlowerspeeds,theturbopropisusuallytheenginechoose
B.Whenanairplaneisdesignedtoflyatlowerspeeds,theturbopropisusuallytheenginechosen
C.Whenanairplaneisdesignedtoflyatlowerspeeds,thepistonpropellerengineisusuallychosen
答案
B、Whenanairplaneisdesignedtoflyatlowerspeeds,theturbopropisusuallytheenginechosen
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