已知一个三角形的三边长分别是6cm，8cm，10cm，则这个三角形的外接圆面积等于 _________ cm2．
25π
Many students are not __________ the harm of staying up late into the night, which causes damage to their health.
A．well aware to
B．very aware of
C．aware that
D．well aware of
厥热胜复实乃阴阳胜复。
