∵(3)2=3,
∴-(3)2=-3.
-You aren’t a stranger, are you?
- , don’t you remember me at the school gate ten minutes ago?
A.Yes, to see
B.No, seeing
C.No, saw
D.Yes, seeing
X线明确显示骨折愈合,最早始于()
A.成骨性肉芽组织形成期
B.纤维性骨痂形成期
C.骨性骨痂形成期
D.塑型期
E.骨折后24小时