Kate can dance very well, but she never shows off. She is very__________.

A．curious

B．modest

C．confident

D．easy-going

根据骨的成因，病理骨折属于（）。

A．骨质疏松症骨折

B．重物撞击处骨折

C．远离受力处的骨折

D．反复长期轻微外力引起骨折

E．以上均是