The beautiful girl ________a hair dresser for a year is a manager now.

A．served

B．served as

C．serving

D．who served as

GPWC是根据下列的参数之间关系来作出风切变判断的：（）.

A.迎角探测器的攻角、IRS的加速度和ADC的空速

B.风向、风速和ADC的空速

C.飞机的垂直加速度、侧滑加速度

D.飞机的迎角和失速警告