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【多选题】
甲状旁腺激素的生理作用有( )A.
升高血钙，降低血磷
B.
促进骨盐沉积
C.
促进1,25-(OH)2-D3的形成
D.
抑制近曲小管对磷酸盐的重吸收
E.
促进成骨细胞的生成
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反馈参考答案：
举一反三
【简答题】If you had taken my advice, you _______much better now. (feel)
【简答题】If you had taken my advice, ______ (就不会犯这样严重的错误).
【单选题】If you had taken my advice, you______a doctor now.
A.
are
B.
would be
C.
have been
D.
should be
【简答题】If you had been in my classes in the early McKee days , you would have seen a skinny young man in his late twenties with messy black hair , eyes that looked with a sign of infection , bad teeth and th...
【简答题】You would be much better now if you had taken my advice.
【单选题】在总体均值和总体比例的区间估计中,估计误差
A.
由置信水平确定
B.
由统计量的抽样标准差确定
C.
由置信水平和统计量（或估计量）的抽样标准差确定
D.
样本容量确定
【简答题】You ________ (be) much better now if you had taken my advice.
相关题目：
【单选题】If you had taken my advice, you______a doctor now.
A.
are
B.
would be
C.
have been
D.
should be
参考解析：
知识点：
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