问题
单项选择题
减小螺旋桨桨叶角的作用力是什么？（）
A.桨叶离心扭转力
B.配重离心力
C.气动扭转力
D.旋转阻力矩
答案
参考答案：A
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减小螺旋桨桨叶角的作用力是什么？（）
A.桨叶离心扭转力
B.配重离心力
C.气动扭转力
D.旋转阻力矩
参考答案：A
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