CMS专题
单选题You have been allocated a 192.168.100.0/22 network. How many usable host are available?（）A 510B 512C 1022D 1024
题目
510
512
1022
1024
相似问题和答案
第1题：
Have you ever been to the place? You can see many places of interest there．（合并为一句）
Have you ever been to the place ________you can see many places of interest?
39. where
第2题：
—My whole body feels weak and I've got a headache. — ( )?
A. How long ago did you get it this
B. How long have you been like this
C. How soon have you got it
D. How soon have you liked this
第3题：
A.have,,joined
B.have,,been
C.has,,joined
D.has,,been
第4题：
A.child
B.children
C.childs
D.childrens
第5题：
— How long _____ at this job? — Since 2000.
A、were you employed
B、have you been employed
C、had you been employed
D、will you be employed
第6题：
A: How have you been? B: Fine.()
第7题：
—I can't see the words on the blackboard. —Perhaps you need _( )
A. How long ago did you get it this
B. How long have you been like this
C. How soon have you got it
D. How soon have you liked this
第8题：
39．— _________ have you been learning English? ．
—I have been learning English for six years．
A． How long
B． How often
C． How far
D． What time
39.A【解析】根据第二句的回答可知第一句问的是 “你学英语多久了”，故A为正确选项．
第9题：
A.How soon
B.How often
C.How many times
D.How long
第10题：
How many holds do you have?