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
Jack _____ dislike the weather in Beijing in spring, because there is so much wind and sand. But now he ____ it.[ ]
A. is used to; used to
B. used to; is used to
C. was used to; is used to
D. used to; uses to
平时所说的硬管尺寸则反映的是（）
A、长度
B、壁厚
C、内径
D、外径
