This is a s__81____ of twin brothers, Justin and Paul. Their friend Susan calls them for h__82____. Justin and Paul drive to Hill Building q____83____. Three man in police uniform p___84___ them into a green van. They are not p__85_____. They are the robbers. The twin brothers aren’t a____86___. Paul opens the back door of the van w__87____ a knife. They take different r___88____ to the police station. They meet the robbers a____89__ in the police station. They are s____90_____. The policemen stop the van because the back door of the van is open.

化脓性颌骨骨髓炎临床中下列哪项描述是正确的

A．占各类型颌骨骨髓炎的比例约为90％以上

B．多为血源性

C．疼痛不明显

D．常形成广泛的骨质破坏

E．常在发病5周后由急性期转为慢性期