We should learn _____ each other.
A. from
B. with
C. to
D. for
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When I was five,I was in Sichuan.
A. 对
B. 错
I need a day or two ______.
A. to think it over
B. to think over it
C. of thinking
D. of think over
Everyhing is _______(可能的) once you work hard.
()是OSI参考模型的第五层,由于利用传输层提供的服务,使其在两个会话实体之间进行透明的数据传输。
A. 网络层
B. 传输层
C. 会话层
D. 表示层