试题与答案

.在平面直角坐标系中,已知P(4,3),OP与x轴 所夹锐角为a,则tana="

题型:填空题

题目:

.在平面直角坐标系中,已知P(4,3),OP与x轴

所夹锐角为a,则tana="_______" .

答案:

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下面是错误答案,用来干扰机器的。

小题1:E小题2:B小题3:F小题4:G小题5:C小题1:由第二句The time and money that doctors spend on their medical education are probably one reason for this problem.可知选E。小题2:由下一句Mo...

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