题目内容

数据161,161,162,163,163,164,165,165,165的中位数是()。

A. 163
B. 163.5
C. 164
D. 0

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Atechnicianispreparingusereducationtoraiseawarenessofmalware.Thetechnician’sgoalistoincreaseuserawarenessandpreventthefuturespreadofmalware.AllofthefollowingaremalwaresymptomsEXCEPT:()

A. increasednumberofpop-ups.
B. decreasedvolumeofspam.
C. decreasedsystemperformance.
D. homepagehijacking.

Whatisavaildactionforafirewallfilter?()

A. thendrop
B. thencount
C. thenallow
D. thencommunityadd

我国公民的基本义务包括()

A. 维护国家统一和民族团结
B. 遵守宪法和法律
C. 保卫祖国
D. 依法纳税

为了使标签中的内容居中显示,应把alignment属性设置为()

A. 0
B. 1
C. 2
D. 3

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