问题
单项选择题
关于甲状旁腺激素(PTH)的作用，错误的是
A．动员骨钙入血(溶骨)，使血钙升高
B．是调节血钙和血磷代谢最重要的激素
C．促进肾小管对钙的重吸收
D．促进近球小管对磷的重吸收，升高血磷
E．促使25-OH-D3转变成为1，25-(O2-D3
答案
参考答案：D
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关于甲状旁腺激素(PTH)的作用，错误的是
A．动员骨钙入血(溶骨)，使血钙升高
B．是调节血钙和血磷代谢最重要的激素
C．促进肾小管对钙的重吸收
D．促进近球小管对磷的重吸收，升高血磷
E．促使25-OH-D3转变成为1，25-(O2-D3
参考答案：D
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| Every year many people 1 different countries come to America to learn English. Most of 2 are young. They learn the language (语言) at school 3 by themselves. Why do they want to learn English? Because English is a very 4 language. 5 books, newspapers and magazines are published (出版) 6 English. If they know English, they 7 read them and know more things 8 the world. And why do they want to come to America to learn English? Because English is American's 9 language. If they are among (在……当中) 10 in that English-speaking country, they can learn good English quickly. |
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