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【单选题】
为了指导计算机网络的互联、互通和互访,ISO颁布了OSI参考模型,其基本结构分为()A.
4层
B.
5层
C.
6层
D.
7层
拍照语音搜题，微信中搜索"皮皮学"使用
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【简答题】导游人员需要具备知识素养、能力素养和( )。
【简答题】Are
you hungry, angels?
【简答题】They discussed the matter from all conceivable __________． [A]angels [B] angles [C] annuals [D] annals
【单选题】下面列出的条目中,哪些是数据库系统的组成成员?( ) I. 操作系统 II. 数据库管理系统 III. 用户 IV. 数据库管理员 V. 数据库
A.
2 ．3．4．5
B.
2．3．4
C.
3 ．4
D.
都是
【单选题】The cleaners should not be looked down on and they are angels of the city _________.
A.
in some ways
B.
all the way
C.
on the way
D.
by the way
【简答题】数据库管理系统是( )。
【单选题】What does the writer mean by saying 'angels carry no harps. Angels carry hammers'? Which of following is NOT true?
A.
This draws God closer to the workers and encourages them.
B.
This is to inspire the young Teresita that she should believe in the workers and depend on them
C.
This is a challenge to the orthodoxy ideas that true religion belongs to the upper class.
D.
This is saying that God is hardworking and does not indulge in playing.
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