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【多选题】
下列关于防火墙的主要功能包括:()。A.
访问控制
B.
内容控制
C.
数据加密
D.
査杀病毐
手机使用
分享
复制链接
新浪微博
分享QQ
微信扫一扫
反馈参考答案：
举一反三
【单选题】I _______ a math test yesterday. But I was not lucky and _______ the test. [ ]
A.
did, failed
B.
failed, passed
C.
took, failed
D.
passed, failed
【单选题】爱登堡的军乐队游行()月举行,每年这个时候,爱丁堡成为举世瞩目的焦点,一年一度的爱丁堡国际艺术节(也称爱丁堡国际音乐节、戏剧节)在这里举办。
A.
5
B.
6
C.
7
D.
8
【简答题】Consider a parent process P that has forked a child process C in the program below. int a = 5; int fd = open(...) //opening a file int ret = fork(); if(ret > 0) { close(fd); a = 6; ... } else if (ret ...
【单选题】Which element(s) of the communication process is in the following description? It was 5:15 P.M., and the fall sales conference of OmniBrands, Inc., had been going on all day. A series of new-product p...
A.
Interference
B.
Message
C.
Feedback
D.
Channel
【多选题】Which element(s) of the communication process is in the following description? It was 5:15 P.M., and the fall sales conference of OmniBrands, Inc., had been going on all day. A series of new-product p...
A.
interference
B.
situation
C.
message
D.
channel
【单选题】It was ______ in the exam that ______ how much time I had wasted.
A.
not until I failed;I realized
B.
until I failed; I didn’t realize
C.
not until I failed; did I realize
D.
until I failed; I realized
【简答题】物体上互相平行的线段,轴测投影互相 ,当正方形不平行于轴测投影面时,其投影是 。
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