—Why did you cancel your trip to the New York?

—We were just about to leave_______ it started to snow．

A．when

B．before

C．after

D．since

患者，男性，61岁，胃溃疡，毕Ⅰ式胃大部切除手术后6d。今日进食后上腹胀满、恶心，呕吐胃内食物，不含胆汁。

护士采取的措施，不包括

A．禁食

B．胃肠减压

C．维持水、电解质、酸碱平衡

D．及时清理呕吐物

E．调理饮食