类风湿关节炎晚期表现是（）
A.关节周围软组织肿胀
B.关节疼痛
C.关节腔融合或消失
D.关节畸形
E.骨质疏松
参考答案：D
How could he get the plan _____ without any one to support him?
A．to carry out
B．carry out
C．carrying out
D．carried out
