题目内容

露天矿山确定台阶高度时应考虑下列影响因素（）

A. 矿岩的埋藏条件和岩性
B. 穿爆工作的要求
C. 开采总深度
D. 采掘工作的要求
E. 减小边坡下滑力和增大抗滑力措施
F. 控制爆破

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You have an Exchange Server 2010 organization.You need to determine why a remote SMTP server rejects e-mail sent from your organization.What should you do？（）

A. Review the application event logs.
B. Review the message tracking logs.
C. Set the Protocol logging level to Verbose on the Receive connectors and then review the protocol log files.
D. Set the Protocol logging level to Verbose on the Send connectors and then review the protocol log files.

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