问题
选择题
― Is Peter there?
― ,please. I’ll see if I can find him for you.
A.Hold up
B.Hold out
C.Hold on
D.Hold off
答案
答案:C
词组辨析题,Hold up举起,耽搁Hold out坚持,维持Hold on别挂断Hold off停止
选C,句意是:别挂断,我去看看是否能找到他。
― Is Peter there?
― ,please. I’ll see if I can find him for you.
A.Hold up
B.Hold out
C.Hold on
D.Hold off
答案:C
词组辨析题,Hold up举起,耽搁Hold out坚持,维持Hold on别挂断Hold off停止
选C,句意是:别挂断,我去看看是否能找到他。
计算并填写下表:
IP地址 | 117.145.131.9 |
子网掩码 | 255.240.0.0 |
主机号 | (1) |
网络地址 | (2) |
直接广播地址 | (3) |
子网内的第一个可用IP地址 | (4) |
子网内的最后一个可用IP地址 | (5) |