“金穗惠农通”工程的维护和管理，原则上每（）个服务点配备1名专职客户经理。
A．50
B．100
C．200
D．300
参考答案：B
以（）景物作为订光的根据是曝光控制的基本要点之一。
The students spent as much time getting trained as they（）studying.
A. disliked
B. were
C. had
D. did
