You are asked to attend the meeting ______ in the hall this weekend.

A．being held

B．to be held

C．held

D．holding

有关屈曲型肱骨髁上骨折，下列哪项是错误的（）.

A.此型骨折少见，多由直接暴力所致

B.骨折线由后下方斜向前上方

C.复位后用石膏托固定肘关节于伸直位，2周后更换为屈曲位

D.跌倒时肘关节屈曲，肘后着地，暴力由肘部传至肱骨下端

E.治疗原则与伸直型相似，但复位方向相反