单纯二尖瓣狭窄心衰时选用哪些药物合适：（）
A.硝酸甘油
B.洋地黄
C.利尿剂
D.异丙基肾上腺素
E.心得安
参考答案：A, C
She gave me a list in case I _____ forget what to buy. [ ]
A. must
B. should
C. might
D. would
变压器的外施耐压试验测量仪表应使用峰值表.()
