【单选题】The author believes that creativity______
A.
is a unique feature of civilized beings
B.
brings forth the improvement of tools
C.
is the result of human development
D.
helps the advance of culture
【单选题】设三人独立地破译一个密码,他们能单独译出的概率 分别为1/5,1/4,1/3,求此密码被译出的概率.
【简答题】三人独立地破译一个密码,他们能单独译出的概率分别为1/5,1/3,1/4,则此密码被译出的概率为
【简答题】三个人独立地破译一密码。他们能单独破译的概率分别为,,,则此密码被破译出的概率为______三个人独立地破译一密码。他们能单独破译的概率分别1/5,1/3,1/4,则此密码被破译出的概率为______
【单选题】Asymmetry is a unique feature of the human body.
【简答题】在交流电中,电流、电压随时间做___变化,称为正弦交流电;
【简答题】Which of the following remains a unique feature of the English countryside? A) Narrow streets lined with pink or white houses. B) Rolling hills with pretty farm buildings. C) Cottages with thatched ro...
【单选题】桌面互联网业务向( )的复制,实现移动互联网与固定互联网相似的业务体验。