My classmate, Li Ming, was highly praised for ___ a good deed.

A．doing

B．have done

C．having done

D．being done

前臂缺血性肌挛缩多见于（）

A.肱骨髁上伸直型骨折

B.肱骨干骨折

C.尺骨上1/3骨折

D.肱骨髁上骨折晚期

E.桡骨远端骨折