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【单选题】
关于维生素D的生理功能,下列说法错误的是:A.
促进小肠粘膜细胞合成钙结合蛋白，增加钙的吸收
B.
促进骨钙沉积和骨的矿化
C.
增加肾小钙、磷的重吸收
D.
抑制成骨细胞增殖和破骨细胞分化
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举一反三
【简答题】翻译下列句子,注意词义选择 1 ) The house is over against the university. 2 ) We’re up against all sorts of difficulties. 3 ) The huge waves hurling themselves against the rock broke into clouds of spray. 4 ) The f...
【单选题】Listen to the 1st long conversation and choose the best answer for Question 1.
A.
He deposited some money.
B.
He drew some money.
C.
He cashed a check.
D.
He visited the teller.
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