—I just heard that the tickets for tonight's show have been sold out.

—Oh, no！________.

A．I was looking forward to that

B．It doesn't matter

C．I knew it already

D．It's not at all interesting

男性，74岁，体重60kg，全胃切除术后5天，大量肠液自腹腔引流管引出，左上腹疼痛，查体：左上腹轻压痛，无肌紧张。

该患者热量每天基本要求量是( )。

A．800kcal

B．1200kcal

C．1500kcal

D．2000kcal

E．2500kcal