属于维生素D类的药物是()
A.雷洛昔芬
B.阿法骨化醇
C.乳酸钙
D.依替膦酸二钠
E.雌二醇
参考答案:B
---A number of foreigners come to see the Great Wall every year.
----Yes. It’s not only famous and beautiful but also the of China.
A.notice
B.mark
C.symbol
D.sign
男,60岁,主诉近2天头晕、胸闷、心悸,来院就诊。
如患者是高血压,其最可能出现的心音改变是()
A.A增强
B.A减弱
C.P增强
D.P减弱
E.P分裂