窝洞制备的原则如下，除外

A．chown u1:u2 /tmp/test.conf

B．chown u1 /tmp/test.conf

C．chown u2 /tmp/test.conf

D．chgrp u1 /tmp/test.conf

and：Is-Id/tmp/applicationdrw-r-r-4rootsystem512Jan1514：09applicationWhichofthefollowingisthemostlikelycauseoftheproblem（）

A.The/tmp/applicationshouldbegloballywritable.

B.The/tmp/applicationdirectoryshouldbeexecutable.

C.The/tmp/applicationdirectoryshouldbeownedbytheuser.

D.The/tmp/applicationdirectoryshouldhavethestickybitset

and：（1）ls-ld/tmp/application（2）drw-r--r--4rootsystem512Jan1514：09applicationWhatisthemostlikelycauseoftheproblem？（）

A.The/tmp/applicationshouldbegloballywritable.

B.The/tmp/applicationdirectoryshouldbeexecutable.

C.The/tmp/applicationdirectoryshouldbeownedbytheuser.

D.The/tmp/applicationdirectoryshouldhavethestickybitset.

A．chmod+s/tmp

B．chmod755/tmp

C．chmod1777/tmp

D．chmod4755/tmp

F. 归并排序

{a为序列表，tmp为辅助数组}

procedure merge(var a:listtype; p,q,r:integer);

{将已排序好的子序列a[p..q]与a[q+1..r]合并为有序的tmp[p..r]}

var I,j,t:integer;

tmp:listtype;

A．./myscript>>/tmp/myoutput

B．./myscript2>&1/tmp/myoutput

C．./myscript>/tmp/myoutput2>&1

D．./myscript>/tmp/myoutput&1>2

F. 归并排序

{a为序列表，tmp为辅助数组}

procedure merge(var a:listtype; p,q,r:integer);

{将已排序好的子序列a[p..q]与a[q+1..r]合并为有序的tmp[p..r]}

var I,j,t:integer;

tmp:listtype;