化脓性骨髓炎骨包壳的形成来自（）
A.感染性肉芽组织的钙化
B.脓液的钙化
C.软组织的异位骨化
D.骨膜产生的新骨
E.手术切开复位
参考答案：D
Just before they began their dinner, Rachel made the introductions and allowed her aunt to ______ the
conversation. [ ]
A. take over
B. hand over
C. turn over
D. get over
JQ—1胶粘剂俗称（）。
