题目内容
(请给出正确答案)
[主观题]
People are trying to find alternatives to animal testing, and they started with liver.A.YB
People are trying to find alternatives to animal testing, and they started with liver.
A.Y
B.N
C.NG
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People are trying to find alternatives to animal testing, and they started with liver.
A.Y
B.N
C.NG
第8题
在下面常用的端口号中,默认的用于FTP服务器的TCP端口是______。
A.80
B.23
C.21
D.25
第9题
在下面常用的端口号中,默认的用于FTP服务器的TCP端口是______。
A.80
B.23
C.21
D.25
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