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【单选题】
男,56岁。上腹胀痛不适10年,进食后半小时加重,可自行缓解,近3个月来体重减轻5kg。胃镜检查示胃小弯侧直径3cm渍疡病灶,取活组织标本行病理检查。能够诊断溃疡病灶属恶性的病理形态学依据是( )A.
细胞浆出现空泡
B.
胞浆黏液明显增多
C.
细胞核大小一致
D.
细胞异型性明显
E.
核仁清楚
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【单选题】When I got there, the meeting _____ for ten minutes. [ ]
A.
has been on
B.
had begun
C.
had been on
D.
has begun
【单选题】The meeting _____ for ten minutes when I got there yesterday. A. has begun B.had begun C. has been on D. had been on
A.
has begun
B.
had begun
C.
has been on
D.
had been on
【简答题】中华人民共和国卫生行业标准中已确定:血清总蛋白和白蛋白 的参考区间分别为____和 ____。
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