GPCU（地面电源控制组件）在飞行中有供电吗（）
A.有，从直流电瓶汇流条供电；
B.没有；
C.有，从直流地面服务汇流条供电。
参考答案：A
The Olympic Games, in 776BC, did not include women players until 1912.
A. first played B to be first played C first playing D to be first playing
管饲饮食，一般配方含有（）。
A.牛奶
B.豆浆
C.鸡蛋
D.蔗糖
E.以上都有
