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【简答题】
()是指网络中面向连接/无连接服务的通信协议接口,是一种抽象的软件结构,包括一些数据结构和I/O缓冲区。
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反馈参考答案：
举一反三
【简答题】根据短文内容及首字母提示,补全空格内单词，使短文完整、通顺。 Peter was the best table tennis player in his school and hardly（几乎不） ever lost a match. He hated losing anything. When he w__小题1:_, he would feel really good. If he lost...
【单选题】Although your son made some mistakes, he worked hard at his lessons. You shouldn’t be hard ______ him.
A.
in
B.
at
C.
on
D.
for
【简答题】用方框中所给单词的适当形式填空，使短文完整正确。（每个单词限用一次） clean, late, near, spend, again, work, have, money, make, listen Robert found a job in a workplce after he finished middle school. His l was about twc. hundred kilo...
【单选题】某矿石船卸货前的排水量和油水存量分别是:卸前58450t和800t,卸后7300t和1000t,则卸货量为( )t。
A.
51150
B.
51350
C.
50950
D.
51550
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