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root and stem
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对于STEM教育,以下选项中不正确的理解是()。
A、STEM教育强调全社会共同参与教育创新实践B、STEM教育强调跨学科C、STEM教育面向所有学生并培养综合素质D、STEM教育注重传统知识的灌输
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●下面Linux命令中， (62)可用于关闭系统。(62)A. [root@root]#init 0B. [root@root]# init 1C.[root@root]# init 2D. [root@root]#init 3
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●在Linux中，可以使用命令(63)来给test文件赋予执行权限。(63)A. [root@root]#chmod -x testB. [root@root]#chmod +x testC. [root@root]#chmod -w testD. [root@root]#chmod +w test
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A frame with two，or sometimes four，arms through which are threaded the guidelines and which is used to keep the drill stem and bit in line with the center opening in the temporary guide base is the ______.A.drill stem guideB.guide frameC.drill string frameD.casing guide
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P=201397095{C=-{AV=ROOT{M{TS{root/maxNumberOfContexts=1024,root/maxTerminationsPerContext=2,root/normalMGExecutionTime=10000,root/normalMGCExecutionTime=10000,root/MGProvisionalResponseTimerValue=30000,root/MGCProvisionalResponseTimerValue=30000}}}}}通过以上消息你可以知道lgw目前最大关联数为多少？（）A、2B、512C、30000D、1024
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What is the STP root guard feature designed to prevent？（）A、a root port being transitioned to the blocking stateB、a port being assigned as a root portC、a port being assigned as an alternate portD、a root port being transitioned to the forwarding state
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Which of the following commands can be used to gain root privileges and profile without initially logging in as root?（）A、 su B、 su root C、 su - root D、 su -c "root"
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有时风大流急，船舶靠码头时必须掉头顶流。（）A、A ship has to turn to stem the tide because the wind is strong when she is getting alongside a wharf.B、Sometimes the wind is strong and the current is rough, so a ship has to turn to stem the tide when she is getting alongside a wharf.C、The wind is big, a ship must get alongside a wharf so she has to turn to stem the tide.D、A ship has to turn to stem the tide so she can get alongside a wharf.
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修改MySQL用户root的密码的指令是（）。A、mysqladmin -u root password testB、mysql -u root password testC、mysql -u root -p testD、mysql -u root -password test
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You load an XmlDocument named doc with the following XML. World Atlas Dictionary You need to use an XPath query string to select the two book nodes. Which code segment should you use? （）A、XmlElement root = doc.DocumentElement;XmlNodeList nodes = root.SelectNodes(“.”);B、XmlElement root = doc.DocumentElement;XmlNodeList nodes = root.SelectNodes(“book”);C、XmlElement root = doc.DocumentElement;XmlNodeList nodes = root.SelectNodes(“bookstore//book”);D、XmlElement root = doc.DocumentElement;XmlNodeList nodes = root.SelectNodes(“books/book”);
考题
单选题A frame with two，or sometimes four，arms through which are threaded the guidelines and which is used to keep the drill stem and bit in line with the center opening in the temporary guide base is the（）.A
drill stem guideB
guide frameC
drill string frameD
casing guide
考题
单选题Which of the following settings will reduce packet overhead and overall latency in a standalonepoint-to-point bridge deployment？（）A
enable concatenation on the non-root bridge onlyB
enable concatenation on the root bridge onlyC
enable concatenation on both the root bridge and non-root bridgeD
enable concatenation on the root bridge and set it as desirable on the non-root bridgeE
set concatenation as desirable on the root bridge and enable it on the non-root bridge
考题
单选题A built-up exhaust valve is one in which （）.A
the stem and heads are made of different materialB
low-alloy steel is used throughoutC
a replaceable valve disk is welded to the headD
the self-centering action comes from motion of the valve stem in the guide
考题
单选题Which of the following commands can be used to gain root privileges and profile without initially logging in as root?（）A
su B
su root C
su - root D
su -c root
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单选题How should the lifeboat sea painter be rigged?（）A
Spliced into the ring on the stem postB
Secured to the inboard side of a forward thwart and led inboard of the fallsC
Secured by a toggle to the stem post and led outboard of the fallsD
Secured by a toggle around the outboard side of a forward thwart
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单选题Which of the following settings will reduce packet overhead and overall latency in a standalone point-to-point bridge deployment？（）A
enable concatenation on the non-root bridge onlyB
enable concatenation on the root bridge onlyC
enable concatenation on both the root bridge and non-root bridgeD
enable concatenation on the root bridge and set it as desirable on the non-root bridgeE
set concatenation as desirable on the root bridge and enable it on the non-root bridge
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单选题查看root用户的cron计时器设置的命令是（）。A
crontab-u root -lB
crontab -lC
crontab -u root -eD
crontab -u root -r
考题
单选题有时风大流急，船舶靠码头时必须掉头顶流。（）A
A ship has to turn to stem the tide because the wind is strong when she is getting alongside a wharf.B
Sometimes the wind is strong and the current is rough, so a ship has to turn to stem the tide when she is getting alongside a wharf.C
The wind is big, a ship must get alongside a wharf so she has to turn to stem the tide.D
A ship has to turn to stem the tide so she can get alongside a wharf.
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