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【单选题】
有下列命题： （1）等边三角形是特殊的等腰三角形； （2）邻边相等的矩形一定是正方形； （3）对角线相等的四边形是矩形； （4）三角形中至少有两个角是锐角； （5）菱形对角线的平方和等于边长平方的4倍； 其中正确命题的个数有（ ）A.
2个
B.
3个
C.
4个
D.
5个
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反馈参考答案：
举一反三
【简答题】What
does Brian need to do when make notes?A. Remember all the things B. Write down the main points
【简答题】定义double x=3.5,y=3.2;则表达式(int)x*0.5的值是_____,表达式y+=x++的值是_____。
【简答题】判断下列过程中哪些是①可逆的；②不可逆的；③可以是可逆的，并扼要说明不可逆的原因。
【单选题】What do Brian Nosek's preliminary results suggest?
A.
The change in bias against blacks is slow in coming.
B.
Bias against blacks has experienced an unusual drop.
C.
Website visitors' opinions are far from being reliable.
D.
Obama's popularity may decline as time passes by.
【简答题】What do Brian Nosek's preliminary results suggest? A．The change in bias against blacks is slow in coming. B．Bias against blacks has experienced an unusual drop. C．Website visitor's opinions are far fr...
【单选题】What will the woman probably do?
A.
See the movie with the man.
B.
See Professor Brian.
C.
See Harry Potter.
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