李渔认为戏曲创作要立主脑。所谓主脑，是指一部戏曲的主要（）和中心（）。他说：此一人一事，即作传奇之主脑也。
沙化地
为什么要定期编制利润表和资产负债表？
You work as the enterprise exchange administrator at Company.com.The Company.com network consists of a single Active Directory domain named Company.com.Company.com has an Exchange Server 2010 organization.Company.com has merged with another company.The users at Company.com have complained that they are not able to share contacts with the users in the merge company.However， they can share free/busy information.The users at Company.com need to share contacts.What should you do？（） You should consider changing the EWS virtual directory.。 You should consider changing the Federation Trust.。 You should consider changing the Organizational Relationship.。 You should consider changing the default sharing policy.。
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显示器、打印机以及打样的样品三者颜色相差很大时，与印刷成品最接近的是（）
