骨折的骨性愈合标准是什么?
参考答案:
①具有临床愈合标准的条件。
②X线摄片显示骨小梁通过骨折线。
I'm amazed to hear from my school teacher again. _______,it is ten years since we met last.
A.In a word
B.What’s more
C.That’s to say
D.Believe it or not
亚砷酸锶,亚砷酸钡,亚砷酸铁