与抗代谢药5-Fu化学结构相似的物质是
A.腺嘌呤
B.鸟嘌呤
C.胸腺嘧啶
D.尿嘧啶
E.胞嘧啶
参考答案:C
患儿男,8岁。因呕血、黑便1天入院。既往有类似呕血史2次,发现乙肝大三阳5年。查体:重度贫血貌,面色苍白,肢端凉,心率120次/分,血压85/60mmHg,腹部平软,中上腹轻压痛,肝肋下未触及,脾肋下2cm。
该患儿消化道出血的原因是()
A.急性胃炎
B.消化性溃疡
C.慢性胃炎
D.食管静脉曲张
E.过敏性紫癜
While the examination is being carried out, ______ shall be present and responsible for moving the goods, opening and restoring the packing.
A. the consignee of the import goods and the consignor of the export goodsB. Customs officerC. harbour officerD. the owner of the ship