类风湿性关节炎最早的病理变化()。
A.非特异性滑膜炎
B.肉芽组织覆盖关节软骨
C.软骨及软骨下骨质破坏
D.关节腔内纤维化
E.关节囊及韧带水肿、肉芽组织形成
参考答案:A
We first met on a train in 2000. We both felt immediately that we___each other for years.
A.knew
B.have known
C.had known
D.hope
什么是注册商标的转让?注册商标转让的程序是怎样的?