如果在规定的时间内未收到飞行预报批复，该计划即视为（）。
A.不同意
B.需再申请
C.待批复
D.已被批准
参考答案：B
_,I'd like to say how much I have enjoyed staying in your comfortable room. [ ]
A. To conclude
B. To include
C. In the conclusion
D. As conclusion
下列故障中是由停电造成的是（）。
A、炉管结焦
B、辐射泵停泵
C、冷却器泄漏
D、背压式离心机停机
