下列钙拮抗剂中,存在手性中心的药物有()
A.硝苯地平
B.尼莫地平
C.非洛地平
D.桂利嗪
E.氨氯地平
参考答案:B, C, E
—Ssh, be quiet! The baby _____ in the next room.
—Oh, sorry. [ ]
A. sleeps
B. slept
C. is sleeping
D. was sleeping
腹部检查扪及胆囊肿大且有明显压痛,首先考虑下列哪一种疾病()
A.慢性胆囊炎
B.胆囊癌
C.胰头癌
D.急性胆囊炎
E.胆囊结石