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【单选题】
PTH对尿中钙磷排泄的影响是()
A.
增加肾小管对磷的重吸收，减少对钙的重吸收
B.
增加肾小管对钙的重吸收，减少对磷的重吸收
C.
增加肾小管对钙、磷的重吸收
D.
减少肾小管对钙、磷的重吸收
E.
对钙、磷的重吸收影响很小
参考答案：
参考解析：
刷刷题刷刷变学霸
举一反三
【单选题】PTH对尿中钙磷排泄的影响是()
A.
增加肾小管对磷的重吸收，减少对钙的重吸收
B.
增加肾小管对钙的重吸收，减少对磷的重吸收
C.
增加肾小管对钙、磷的重吸收
D.
减少肾小管对钙、磷的重吸收
E.
对钙、磷的重吸收影响很小
【单选题】Every year more than half a million American kids have drainage(排泄) tubes surgically implanted in their ears to combat persistent infections. The procedure, known as tympanostomy, may not be as (62) a...
A.
[A] feeling [C] health
B.
[B] hearing [D] memory
【单选题】Section BDirections: There are 2 passages in this section．Each passage is followed by some questions or unfinished statements．For each of them there are four choices marked A, B, C and D．You should de...
A.
could not easily be absorbed by the human body
B.
were potentially harmful to people's health
C.
were too expensive for daily consumption
D.
could not provide any cure for vitamin deficiencies
【单选题】男，4岁。1岁时诊断为佝偻病，给予钙剂及维生素D治疗，现钙、磷、碱性磷酸酶均正常，但仍遗留中度O形腿，应给予（）。
A.
按摩腿外侧肌群
B.
作俯卧位抬头展胸运动
C.
手术矫正畸形
D.
口服维生素D+钙
E.
使用突击量维生素D