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【单选题】
Windows记事本中,选中全部文本的热键是()。A.
Shift+A
B.
Alt+A
C.
Ctrl+A
D.
空格键+A
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举一反三
【单选题】●In Internet， (66) used as a barrier to prevent the spread of viruses． (66)
A.
modom
B.
firewire
C.
firewall
D.
netcard
【简答题】A．They defend the bone against viruses. B．They pr oxygen from entering the bone. C．They break down bone tissue. D．They connect the bone to muscle tissue.
【单选题】In Internet,(66)used as a barrier to prevent the spread of viruses.
A.
modom
B.
firewire
C.
firewall
D.
netcard
【简答题】A．They defend the bone against viruses. B．They pr oxygen from entering the bone. C．They break down bone tissue. D．They connect the bone to muscle tissue.
【简答题】根据提供的实验材料,小组合作设计实验,展开研究,探索精细动作的影响因素,并撰写实验报告。
【简答题】To pr viruses from spreading, we should ________. A) shake hands with our friends instead of kissing them B) never touch the telephones, towels or plates C) often wash our hands D) often rub our ...
【单选题】在日常生活中,有益的摩擦需要增大,有害的摩擦需要减小下列实例中是为了减小摩擦的是( )
A.
鞋底凹凸不平的花纹
B.
自行车的车轴处加润滑油
C.
汽车的轮子上加防滑链
D.
自行车刹车时捏紧刹车闸
【单选题】To prevent viruses from spreading, we should______________
A.
shake hands with our friends instead of kissing them
B.
never touch the telephones, towels or plates
C.
often wash our hands
D.
often rub our noses and eyes
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