如果存储的重要数据介质是光盘，则应该先（）再焚毁
A.覆写
B.捣碎
C.化学腐蚀
D.消磁
参考答案：B
－_______ 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
小速度飞行时，飞机的侧向安定性都要变差，可用什么来改善（）。
A.M数配平器
B.偏航阻尼器
C.扰流板
－I don’t think you should do that until _________ another job.