发动机灭火剂按钮（AGENT按钮）上的DISCH灯的信号来自（）
A.FDU1
B.灭火瓶爆炸帽
C.灭火瓶压力电门
D.按钮按下灯就亮
参考答案：C
-----_____ leave at the end of this month.
-------I don’t think you should do that until _____ another job.
A．I’m going to; you’d found
B．I’m going to; you’ve found
C．I’ll; you’ll find
D．I’ll; you’d find
溃疡性结肠炎一般均有()
A．腹痛
B．贫血
C．发热
D．腹泻
E．食欲不振
