跨区无高效直达路由时,选迂回路由,迂回路由次数最多不能超过()次。
A.1
B.2
C.3
D.4
参考答案:D
——How is your grandma?
——She’s fine. She used to_____TV at home after supper. But now she is used to_____out for a walk.
A.watch;go
B.watching;go
C.watching;going
D.watch;going
以下哪个是结束项目或阶段过程的输入?()
A.完成的可交付成果
B.验收的可交付成果
C.确认的可交付成果
D.最终的可交付成果