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_____ of the controllable pitch propeller enables the blades to be moved to change the pitch angle
A.An external mechanism
B.An internal mechanism
C.An interlock device
D.A hunting gear system
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更多 “ _____ of the controllable pitch propeller enables the blades to be moved to change the pitch angleA.An external mechanismB.An internal mechanismC.An interlock deviceD.A hunting gear system ” 相关考题
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在电子邮件地址macke@pit.arc.nasa.gov中,域名部分是()。
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在一个邮件服务器中有如下地址,邮件地址mackenzre@pit.arc.nasa.gov中（）表示域名。A．pit.arc.nasa.govB．mackenzreC．nasa.govD．mackenzre@pit.arc.nasa.gov
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单元宽度超过整数个pitch单元（比如N个）一点，但又不到N+1个，那么还是要调用N+1个pitch单元
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