124 A line manager provides you with three estimates for his activity in your PERT network. His estimates are 2 weeks optimistically, 4 weeks most likely, and 12 weeks pessimistically. The expected time which would appear on the chart would be:A. 4 weeksB
题目
124 A line manager provides you with three estimates for his activity in your PERT network. His estimates are 2 weeks optimistically, 4 weeks most likely, and 12 weeks pessimistically. The expected time which would appear on the chart would be:
A. 4 weeks
B. 5 weeks
C. 6 weeks
D. 7 weeks
E. None of the above
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第1题：
Merry Christmas, George! Here is a card for ________, with ________ best withes.A.you…your
B.you…our
C.us…our
D.us…your
参考答案：B
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第2题：
Youwanttocreateaconsumergroup，GROUP1，andyouexecutethefollowingcommandinthecommand-lineinterface：SQL>EXECDBMS_RESOURCE_MANAGER.CREATE_CONSUMER_GROUP（CONSUMER_GROUP=>’group1’，COMMENT=>’NewGroup’）；Thiscommanderrorsoutdisplayingthefollowingmessage：ERRORatline1：ORA-29371：pendingareaisnotactiveORA-06512：at"SYS.DBMS_RMIN"，line115ORA-06512：at"SYS.DBMS_RESOURCE_MANAGER"，line108ORA-06512：atline1Whatactionwouldyoutaketoovercomethiserror？（）
A.activatethePendingAreabeforecreatingtheconsumergroup
B.createthePendingAreabeforecreatingtheconsumergroup
C.increasethesizeofthedatabasebuffercachetoaccommodatethePendingArea
D.increasethesizeofthesharedpooltoaccommodatethePendingArea
E.increasethesizeofthelargepooltoaccommodatethePendingArea
参考答案：B
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第3题：
（ ） – Is Miss White __________ English teacher, Maria?
– No, she teaches __________ geography.
A．your；my
B．you；mine
C．you；us
D．your；us
正确答案：D
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第4题：
Youwanttocreateaconsumergroup，GROUP1，andyouexecutethefollowingcommandinthecommandlineinterface：SQL>EXECDBMS_RESOURCE_MANAGER.CREATE_CONSUMER_GROUP（CONSUMER_GROUP=>’group1’，COMMENT=>’NewGroup’）Thiscommanderrorsoutdisplayingthefollowingmessage：ERRORatline1：ORA01031：insufficientprivilegesORA06512：at"SYS.DBMS_RMIN"，line115ORA06512：atSYS.DBMS_RESOURCE_MANAGER"，line108ORA06512：atline1Whatactionwouldyoutaketoovercomethiserror？（）
A.grantSYSDBAtotheuser
B.grantSYSOPERtotheuser
C.granttheRESOURCEroletotheuser
D.usetheGRANTcommandtogranttheADMINISTER_RESOURCE_MANAGERprivilegetotheuser
E.granttheADMINISTER_RESOURCE_MANAGERprivilegetotheuserbyusingthe DBMS_RESOURCE_MANAGER_PRIVSpackage
参考答案：E
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第5题：
Provides 3 properties that make an OS, a RTOS?
正确答案：
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第6题：
【单选题】下面程序的输出是。 main（) {enum team {my,your=4,his,her=his+10}; printf（"%d%d%d%dn",my,your,his,her);}
A．0 1 2 3
B．0 4 0 10
C．0 4 5 15
D．l 4 5 15
DDBBCC C语言对枚举的定义规定：在枚举中声明的各个枚举元素，如果没有明确指出某个枚举元素的值，它的上一个元素存在并有明确值的情况下，这个枚举元素的值为其上一个元素的值+1。在本题中，没有明确说明枚举元素em3的值，则em3=em2+1=1+1=2，进而可知，在printf()打印函数中，要打印的数组元素是aa[3]、aa[1]、aa[2]，因此最后的打印结果应当为“DDBBCC”。