搜题请搜索小程序“爱下问搜题”
问题 单项选择题

用药物治疗扩张型心肌病时应慎用下列哪种药物（）

A.血管紧张素Ⅱ受体拮抗剂

B.利尿剂

C.血管紧张素转换酶抑制剂

D.β受体阻滞剂

E.钙拮抗剂

答案

参考答案：E

计算题

（9分）在反应3Cu+8HNO3(稀)=3Cu(NO3)2+2NO↑+4H2O中，有19.2gCu被氧化，则被还原的HNO3的质量为多少？
查看答案
选择题

Among the 15-year-old children, some ____ studying in university while others are still learning to read and

write. [ ]

A. should have been

B. would have been

C. can be

D. must be

查看答案