皮皮学，免费搜题
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【多选题】
1属于TCP/IP中应用层的协议有A.
HTTP
B.
FTP
C.
SMTP
D.
DNS
拍照语音搜题，微信中搜索"皮皮学"使用
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参考解析：
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皮皮学刷刷变学霸
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【简答题】4 名学生分配到 3个车间去劳动,每个车间必须至少一个人, 共有多少中不同的分配方案 ?
【单选题】听力原文：Broadly speaking, there was a time when books were hand-printed on rare leather by monks. The only people who could read them were priests, who got a regular eyeful of the really cool cartoons th...
A.
正确
B.
错误
【单选题】The children were surprised when the teacher had them ______ their books unexpectedly.
A.
closed
B.
to close
C.
closing
D.
close
【单选题】When they had finished reading, the children were told to _________ all the picture books they had taken out.
A.
put up
B.
put off
C.
put away
D.
put out
【单选题】What were the first books that impressed Russell when he was a child?
A.
History books.
B.
Mathematics books.
C.
Fairy stories.
D.
Adventure stories.
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