民主集中制的是（）相互依存、相互制约、相辅相成的辩证统一关系。
A.民主与集中
B.民主与法制
C.道德与法制
D.民主与自由
参考答案：A
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
甲状腺 * * 状癌的病理特点是
A．肿瘤形成 * * ，被覆上皮细胞核呈空泡状
B．肿瘤细胞形成滤泡
C．肿瘤细胞呈条索或片状排列，分泌降钙素
D．肿瘤细胞呈梭形
