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【判断题】
只有脂肪醛能被试剂氧化，芳香醛则不能。所以可用试剂区分脂肪醛与芳香醛A.
正确
B.
错误
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举一反三
【单选题】I think the Beijing Olympic will develop our ________with many countries.
A.
enjoyment
B.
success
C.
interests
D.
friendship
【简答题】Their refusal to sign the international treaty was __________ by many countries in the world. [A] announced [B] denounced [C] renounced [D] pronounced
【单选题】Ubuntu Server图形化界面,安装桌面软件的命令是
A.
sudo apt-get install Ubuntu
B.
sudo apt-get install desktop
C.
sudo apt-get install Ubuntu-desktop
D.
sudo apt-get install desktop-Ubuntu
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