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将当前目录下的bin目录和hello、hello.c文件备份并压缩为binzxj.tar.gz文件的命令是（）。

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生理性分裂（）

A. 深吸气末S₂分裂，尤见于青少年
B. 主动脉瓣关闭迟于肺动脉瓣关闭
C. 肺动脉瓣关闭明显延迟
D. 额外心音与原有的S₁、S₂组成类似马奔跑蹄声
E. 第二音后0.07s音调高、历时短促而响亮，清脆呈拍击样

哪个图层名不会被改名或被删除（）。

A. STANDAND
B. 0
C. UNNAMED
DEFAULT

TestKing.com has a server named SQL1 that runs SQL Server 2005 Enterprise Edition.SQL1 has 2 GB of RAM， 1.6 GB of which are used by the default SQL Server database engine instance. The average data growth of all databases combined is 100 MB a month. Users state that report execution times are increasing. You want to assess whether more RAM is needed. You need to use System Monitor to create a counter log that will help you decide whether to add RAM. Which performance object should you add to the counter log？（）

A. MSAS 2005：Cache
B. MSAS 2005：Memory
C. MSAS 2005：Proactive Caching
D. SQLServer：Buffer Manager

已知某双组份油漆与其配套固化剂的调配比例是10：1（质量比），那么如果有5kg油漆需加入（）kg的固化剂。

A. 0.5
B. 0.1
C. 0.2
D. 5