题目内容（请给出正确答案）

[多选题]

动力基础设计中需选用的天然地基土的动力参数一般有()。

A.地基土的刚度系数

B.地基土的泊松比

C.地基土的阻尼比

D.地基土的弹性模量

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更多“动力基础设计中需选用的天然地基土的动力参数一般有（)。A．地…”相关的问题

第1题

Which IEEE standard is used to define Wi-Fi？（）

A．IEEE 802.3

B． IEEE 802.5

C． IEEE 802.11h

D． IEEE 802.11c

E． IEEE 802.11

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第2题

Which protocol is an open standard protocol framework that is commonly used in VPNs,to provid secure end-to-end communication？（）

A．L2TP

B． IPsec

C． PPTP

D．RSA

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第3题

Which protocol is an open standard protocol frame work that is commonly used in VPNs，to provid secureend-to-end communication？（）

A．L2TP

B．IPsec

C．PPTP

D．RSA

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第4题

Switch ports operating in which two roles will forward traffic according to the IEEE 802.1w standard？（）

A．alternate

B．backup

C．designated

D．disabled

E．root

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第5题

Ethernet is the commonly used local area network communication protocol. The standard of Ethernet is the commonly used local area network communication protocol. The standard of Ethernet is __（）__.

A．IEEE 802．1

B．IEEE 802．2

C．IEEE 802．3

D．IEEE 802．11

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第6题

The standard protocol used for sending Internet e－mail is called （). It works in con

The standard protocol used for sending Internet e-mail is called (). It works in conjunction with POP servers.

A、SMTP

B、WWW

C、TCP

D、UDP

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第7题

According to the text, WAP is a______.A．technology standard set by major phone companiesB．

According to the text, WAP is a______.

A．technology standard set by major phone companies

B．substitution of HTML which can be applied on Internet

C．means of exchanging information on the Internet

D．wireless application protocol signed in USA and Europe

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第8题

文献：IEEE Standard for Local and metropolitan area networks--Virtual Bridged Local Area Networks--Bridge Port Extension.IEEE Std 802.1BR-2012，下列说法正确的是：

A、这是一篇IEEE数据库收录的标准文献

B、文献题目是：IEEE Standard for Local and metropolitan area networks--Virtual Bridged Local Area Networks--Bridge Port Extension

C、标准号是IEEE Std 1722-2012

D、2012年出版

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第9题

The File Transfer Protocol （FTP） is a standard network protocol used for the transfer of computer （） between a client and server on a computer network.FTP is built on a （） model architecture using s

A．encrypt

B．decryption

C．clear-text

D．secure

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