网络型数字视频安防监控系统相邻两个交换层之间互联的IP有线网络指标,时延应()。
A、≤400ms
B、≤2s
C、≤4s
D、≤5s
参考答案:A
补全对话。
---__1__
---I wish I could say the same! Only joking! How have you been?
--- As well as usual. The kids have all grown up and moved out, so it's just the two of us now. __2__
--- That would be great.__3__
--- Any day next week. Just drop around when you feel like it.
--- ___4__
--- It sure will. Anyway, I have to leave. Remember to come around for dinner.
--- __5__
A.When is a good time for you?
B.What shall we do then?
C.It's nice to see you again.
D.I will, and it'll be good to catch up again.
E.I am looking forward to it. See you next week.
F.While you're around, why don't you drop by for dinner one night?
G.Shall we meet on Wednesday?
要定义一个具有5个元素的一维数组vect,并使其各元素的初值依次是30,50,-88,0和0,则下列定义语句中错误的是______ 。
A.int vect []={30,50,-88};
B.int vect[]={30,50,-88,0,0};
C.int vect [5]={30,50,-88};
D.int vect [5]={30,50,-88,0,0};