With the development of the Internet, people in China can enjoy more ________ of speech. They

can now make comments(评论) on the government according to the law.[ ]

A. freedom                

B. sign            

C. symbol        

D. mark

风湿性心脏病联合瓣膜病伴快速型心房颤动3年，地高辛治疗1个月后出现以下哪种情况，需立即停用洋地黄类药物（）

A.胸骨左缘3～4肋间出现收缩期吹风样杂音

B.肺动脉瓣区舒张期吹风样杂音增强

C.夜间尿量增多

D.心电图ST段呈斜形下移

E.心率56/min，节律规整