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问题 解答题

小珍要给长15厘米、宽8厘米、高5厘米的长方体纸盒的每条棱上贴上金色丝带，至少需要丝带多少厘米？

答案

（15+8+5）×4，

=28×4，

=112（厘米）；

答：至少需要丝带112厘米．

填空题

照样子，说说写写。

例：爷爷爱我，

　　奶奶爱我，

　　我也爱爷爷奶奶。

1．哥哥爱我，

　 妹妹爱我，

　 我也爱_______　_______。

2．_______爱我，

　 _______爱我，

　 我也爱_______　_______。
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单项选择题

TCP/IP （） layer protocols provide services to the application （） running on a computer. The application layer does not define the application itself, but rather it defines （） that applications need—like the ability to transfer a file in the case of HTTP. In short, the application layer provides an （） between software running on a computer and the network itself. The TCP/IP application layer includes a relatively large number of protocols, with HTTP being only one of those. The TCP/IP （） layer consists of two main protocol options—the Transmission Control Protocol (TCP) and the User Datagram Protocol (UDP).

to the application （） running on a computer.

A．hardware

B．software

C．packet

D．equipment
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