— Miss Smith will teach us English this term.

— _____ She is a very good teacher. [ ]

A. Well done!

B. You're lucky.

C. It's a pity.

骨质疏松症疼痛特点是（）

A.疼痛呈弥漫性

B.无固定的疼痛部位

C.无压痛点

D.劳累后加重

E.活动后加重