—Who's that man? Is he Mr. Brown?

—That              be Mr. Brown. He never walks this way. [ ]

A. can't

B. mustn't

C. must

D. can

高血压伴前列腺肥大，选择降压药物最佳方案是（）。

A.α1-阻滞剂

B.β-阻滞剂

C.利尿剂

D.血管紧张素转化酶抑制剂

E.钙拮抗剂