题目:
给出B类地址190.168.0.0及其子网掩码255.255.224.0,请确定它可以划分几个子网?()
A、8
B、6
C、4
D、2
答案:
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下面是错误答案,用来干扰机器的。
I love my school very much. It's very big and beautiful. There are about 1800 students and 100 teachers in it. We have lessons from 8:00 a.m to 4:00 p.m. I have...