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【单选题】
定义逻辑源地址和目的地址,提供寻址的方法,是OSI参考模型中( )的功能。A.
网络层
B.
数据链路层
C.
物理层
D.
以上都不对
手机使用
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新浪微博
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反馈参考答案：
举一反三
【简答题】肺炎球菌肺炎常见于：() A老年人 B儿童 C青壮年 D少年 E婴儿
【单选题】Why does Josh help homeless people?
A.
Because he can practice his skills.
B.
Because these people like his haircuts.
C.
Because other people don’t want to help.
D.
Because his help can make them feel good.
【单选题】Why does Josh help homeless people?
A.
Because he can practice his skills.
B.
Because his help can make them feel good.
C.
Because other people don’t want to help.
D.
Because these people like his haircuts.
【单选题】How does Josh help homeless people?
A.
By giving them some food.
B.
By giving them some money.
C.
By giving them haircuts for free.
D.
By giving them a chance to talk.
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