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【多选题】
以下关于IP地址的描述中,正确的有?A.
IP地址固化在设备ROM中的物理地址，不可由用户进行修改。
B.
同一个网络中的IP地址具有唯一性的特性。
C.
DNS服务器可以对网络中的主机进行动态地址分配。
D.
IP地址由网络号和主机号组成。
E.
子网掩码是由连续的1和0组成，其中连续的1表示主机位，连续的0表示网络位。
F.
通过改变子网掩码，可以进行子网划分，将网络规模变小或变大。
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皮皮学刷刷变学霸
举一反三
【单选题】____The water left in the kettle, the doctor put several things he unwrapped from a handkerchief.
A.
At
B.
To
C.
Within
D.
Into
【单选题】There was little water left in the river, ___?
A.
wasn't there
B.
was there
C.
didn't it
D.
did there
【单选题】When he got out of bed, Scobie ______
A.
jumped out like a young man, to show how healthy he was
B.
got out slowly because he was too busy talking
C.
could hardly get out although he suffered badly from rheumatism
D.
got out with difficulty because his bones were stiff and painful
【简答题】I. yze the features of the following passages. (1) First, a long glass tube was taken. The tube was closed at the top and was then completely filled with water. Next it was placed vertically in a ...
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