–-- I really like this overcoat, but you charge me too high a price.

--- I’m afraid ______; it’s the latest fashion, you know.

A．it can’t be the most expensive

B．it doesn’t cost much

C．it can’t be cheaper

D．it could have been a real bargain

可使肥厚型梗阻性心肌病的心脏杂音减弱的药物是（）

A.硝酸甘油

B.地高辛

C.异丙肾上腺素

D.亚硝酸异戊酯

E.普萘洛尔