题目内容

H2C2O4的Ka1=5.9×10-2,Ka2=6.4×10-5,则其0.10mol/L溶液的pH为()。

A. 2.71
B. 1.11
C. 12.89
D. 11.29

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写出目前三层MPLSVPN组网中涉及路由器的逻辑名称及其主要功能。

什么是结疤?产生的原因是什么?

You work as the enterprise exchange administrator at Xxx .Xxx is using Microsoft Exchange Server 2010 as their messaging solution.The Xxx network has two Mailbox servers named XXX-EX01 and XXX-EX02.During the course of the week you receive an instruction from the CIO to determine the amount of time it takes for the delivery of messages between XXX-EX01 and XXX-EX02.Which of the following commands can be used to achieve this goal?()

A. You must use the Test-ServiceHealth cmdlet.
B. You must use the Test-Mailflow cmdlet.
C. You must use the Get-MailboxStatistics.
D. You must use the Get-MailboxDatabase.

人民群众之所以(),就是因为共产党是为人民服务的

A. 理解
B. 信任
C. 选择
D. 支持

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