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【单选题】
下列关于 Windows 的叙述中正确的是( )。A.
能同时运行多个程序
B.
桌面上不能同时容纳多个窗口
C.
不支持鼠标操作
D.
不能运行所有的 DOS 应用程序
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举一反三
【单选题】What is the main point of the report?
A.
Obama days Mandela is not only his personal hero but also a hero for the world.
B.
Obama is going to meet with the Mandela family instead of Nelson Mandela.
C.
President Obama may not get a chance to see Nelson Mandela on his trip to South Africa.
D.
The trip is bittersweet because President Obama cannot pay tribute to the man he calls a hero to the world.
【多选题】修改工具栏用窗口选择对象时,从右下角和左下角窗口拉选有什么特点?
A.
右下角只能选择全部框进去的
B.
左上角只能选择全部框进去的
C.
左上角只要相交就能选择住
D.
右下角只要和框相交就能选择住
【单选题】某一元弱酸的浓度为 0.01mol·L -1 , 298K 时离解度为 1% ,该一元弱酸的 K a 是:
A.
10 -2
B.
10 -4
C.
10 -6
D.
10 -8
E.
10 -10
【简答题】天花粉的功效有___、___。
【单选题】He added, 'President Obama is going to do_____ he thinks is necessary to get our economy moving a
A.
30．He added, 'President Obama is going to do_____ he thinks is necessary to get our economy moving again.' A．everything what
B.
no matter what
C.
whichever
D.
whatever
【简答题】试述影响学前儿童心理发展的因素。
【单选题】What did Obama say toward progress in peace talks between Israelis and Palestinians?
A.
He says Israelis is going to have to make some difficult compromises.
B.
He said the atmosphere in which talks can restart cannot be created.
C.
He said they should work together to stop extremism and support peace.
D.
All of the above are right.
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