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【单选题】
某人患慢性肾炎已3年，目前蛋白尿(++)。血压和肾功能正常，其饮食应限制A.
总热量
B.
钙
C.
钠
D.
糖
E.
蛋白质
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【单选题】When guest room attendants or housekeepers first enter guest units, after knocking, the first thing to say will be
A.
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B.
May I help you?
C.
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D.
Housekeeping
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