与仅发生获能的精子相比,进一步发生顶体反应的精子()。
A. 有完整的顶体
B. 无顶体
C. 活动能力变弱
D. 活动能力变强
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安检服务员在安检过程中因失误向客户道歉时,不可采取的方法是表示()
A. 深感歉疚
B. 非常惭愧
C. 我真笨
D. 多多包涵
Your network contains a database server that runs Windows Server 2003 Standard Edition Service Pack 2 (SP2). The server has 1 GB of RAM and a single hard disk. Queries against the databases on the server are very slow. You discover that the hard disk on the server is very active. You are evaluating whether to add RAM to the server. You need to use System Monitor to find out whether adding RAM will decrease disk activity. Which performance counter should you monitor? ()
A. LogicalDisk : % Free Space
B. Memory : Pages Faults/sec
C. Memory : Free System Page Table Entries
D. Server Work Queues : Queue Length
总工程师每周对重点防突工作面的现场检查不得少于2次。
A. 正确
B. 错误