题目内容

()给EPC中间件指明了存储产品相关信息的服务器。

A. DNS
B. ONS
C. EPCIS
D. 读写器

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ONS在DNS基础上进行EPC解析,因此其输入端是__________,而DNS用于解析,其输入端是_________。

EPCIS在整个EPC网络中的主要作用,就是提供一个接口,以存储和管理EPC捕获的信息。

A. 对
B. 错

The author stopped playing chess when he ____________.

A. was seven
B. was eleven
C. got a cell phone
D. got a computer

Which of the following games were still on the author’s phone?

A. Chess.
B. Tetris.
C. Snapchat.
D. All of the above.

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