A.select * from student order by name desc
B.select * from student order by name asc
C.select * from student group by name desc
D.select * from student group by name
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最新試題
iptables中,實(shí)現(xiàn)指定默認(rèn)規(guī)則的選項(xiàng)為()
如果在linux系統(tǒng)上想通過(guò)iptables實(shí)現(xiàn)路由功能,則需要配置有()
iptables中的filte表有哪幾個(gè)規(guī)則鏈()
關(guān)于硬件防火墻說(shuō)法正確的是()
刪除/etc/httpd/conf/httpd.conf文件中空白行可以使用命令()
有關(guān)防火墻的說(shuō)法正確的是()
在企業(yè)中,如果使用Linux服務(wù)器作為網(wǎng)關(guān)服務(wù)器,可使用()為作防火墻。
硬件防火墻可節(jié)省系統(tǒng)的資源。
wc命令使用()選項(xiàng)統(tǒng)計(jì)行數(shù)。
下列選項(xiàng)中關(guān)于iptables的選項(xiàng)說(shuō)法正確的是()