President Xi Jinping demanded that the environmental problems ______ paid special attention to.

A．referred to being

B．referred to be

C．refer to being

D．refer to be

男，3岁。被母亲牵拉右手上台阶时突然哭闹，拒绝使用右上肢。

诊断首先考虑为（）

A.右上肢软组织损伤

B.右肘关节脱位

C.右桡骨小头半脱位

D.右肩关节脱位

E.肱骨髁上骨折