You have two Exchange Server 2010 named Server1 and Server2.Server1 has the Mailbox server role installed.Server2 has the Hule Transport and client access server roles installed.You need to ensure that users can send e-mail and receive e-mail by using Windows Live Mail or Microsoft Outlook Express. What should you do?()
A. From the command Prompt on server1,run net start MsExchangePOP3
B. From the command Prompt on Server2,run net start MsExchangePOP3
C. On Server1 and Server2,modify the properties of the MsExchangePOP3(TCP-in) Windows Firewall rule
D. On Server1,modify the properties of the MsExchangeIMAP4(TCP-in) Windows Firewall rule.On server2, modify the properties of the client receive connector
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属于石蜡基原油的是()原油。
A. 胜利
B. 羊三木
C. 大庆
D. 新疆
重金属一般是指密度等于或大于()的元素,在元素周期表上大约有50种左右。土壤中主要的重金属污染物有镉、铜、铬、汞、铅、锌以及类金属砷等。这些重金属在水中不能被分解,人饮用后毒性放大,与水中的其他毒素结合生成毒性更大的有机物。
A. 0.5g/cm3
B. 5.0g/cm3
C. 5.5g/cm3
原油可按含硫量分类,含硫量为()%时,称为高硫原油。
A. <0.5
B. <2.0
C. 0.5~2.0
D. >2.0