若计算机系统中的进程在就绪、运行和等待3种状态之间转换,进程不可能出现______的状态转换。
A.就绪→运行 B.运行→就绪 C.运行→等待 D.等待→运行
参考答案:D
—Is Jessica giving us a speech this evening?
—No, it _________ be her.She _________ to Japan.
A.mustn't;has gone
B.mustn't; has been
C.can't; has gone
D.can't; has been
申请设立外国企业常驻代表机构。应当提交哪些材料?