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【单选题】
女 45 岁,排便疼痛伴鲜红色血便 3 天,出血最可能来自A.
胃
B.
直肠
C.
空肠
D.
十二指肠
E.
食管
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A.
He believes that good benefits can build his company a devoted workforce.
B.
He wants to make his company different from the fast food companies.
C.
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D.
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