An access list has been designed to prevent HTTP traffic from the Accounting Department from reaching the HR server attached to the Holyoke router. Which of the following access lists will accomplish this task when grouped with the e0 interface on the Chicopee router()。
A. permit ip any any deny tcp 172.16.16.0 0.0.0.255 172.17.17.252 0.0.0.0 eq 80
B. permit ip any any deny tcp 172.17.17.252 0.0.0.0 172.16.16.0 0.0.0.255 eq 80
C. deny tcp 172.17.17.252 0.0.0.0 172.16.16.0 0.0.0.255 eq 80 permit ip any any
D. deny tcp 172.16.16.0 0.0.0.255 172.17.17.252 0.0.0.0 eq 80 permit ip any any
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液体内某点的绝对压强为94kN/m2,由于该点压强小于大气压强98kN/m2,所以该点发生真空。
A. 正确
B. 错误
有副作用的药物是不能服用的。
A. 正确
B. 错误
乌鲁木齐市每年需要防寒的树种有()
A. 月季
B. 垂榆
C. 榆叶梅
D. 小叶白蜡