You work as the exchange administrator at company.com.the company.com network contains an exchange server 2010 organization.company.com has its headquarters in london where you are located.during the course of the day you receive notification from management to view the number of mailboxes on the servers that exceeds 1 gb in size.what should you do？（）
A. you should consider having the properties of the mailbox database viewed using the exchange management console （emc）.
B. you should consider running the get-mailbox cmdlet using the exchange management shell.
C. you should consider running the get-mail box statistics cmdlet using the exchange management shell.
D. you should consider having a send- and a recipient filter created using the exchange management console （emc）.
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第一类建筑物首次雷击时，雷电流峰值为（），波头时间为（），电荷100C，单位能量（），雷电流陡度为（）。
基准按几何特征可以分为基准点、基准直线和（）三种类型。
多雨潮湿地区的高速公路沥青面层空隙率较大，有严重渗水可能，或铺筑基层不能及时铺筑沥青面层而需通行车辆时，宜在喷洒（）后铺筑下封层。
A. 透层油
B. 粘层油
C. 沥青油
企业购入了需要安装的设备一台，取得的发票上注明的设备款为40000元，发生的运费为2500元，购人后发生安装费1000元，全部款项已从银行存款户支付，设备已安装完毕，交付使用。安装完毕交付使用时，会计分录为（）。
A. 借：固定资产40000；贷：在建工程40000
B. 借：固定资产41000；贷：在建工程41000
C. 借：固定资产42500；贷：在建工程42500
D. 借：固定资产43500；贷：在建工程43500
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