问题 多项选择题

下列对甲状旁腺素(PTH)的描述正确的有()

A.PTH的分泌受血钙的调节,其最低分泌率很低,但不为零

B.PTH刺激肾小球滤过的钙大部分在近端小管重吸收

C.PTH对骨的作用不能导致骨量的增加

D.活性维生素D可显著抑制PTH的分泌

E.磷水平的增高可刺激PTH的分泌

答案

参考答案:A, B, D, E

填空题
阅读理解

Mary didn’t understand such sentences as “She is blue today”, “You are yellow”, “He has a green thumb”, “He has told a white lie” and so on. And she went to the teacher Mrs. James for help.

Mary:    Mrs. James, there is a colour in each of the sentences. What do they mean?

Mrs. James: In everyday English, Mary, blue sometimes means sad, yellow afraid. A person with a green thumb grows plants well and a white lie is not a bad one.”

Mary:     I’m afraid I don’t understand them all. Would you give me an example for “a white

lie”?

Mrs. James: Certainly. Now I just give you some cakes. In fact you don’t like it, but you don’t want to let me know it. Instead you say, “No, thanks. I’m not hungry.” That’s a white lie.

Mary:      It sounds very interesting. Thanks very much.

Mrs. James: You are welcome. Colours are meaningful. I think you will meet more sentences like these in the future. Please come to me if you have any questions.

小题1:Blue sometimes means sad in _______________ English.

A.good

B.spoken

C.usual

D.poor小题2:I don’t have a green thumb, so all my plants ________________.

A.die off

B.grow well

C.look nice

D.are good小题3:David is yellow and he is ___________ to climb the tall tree!

A.happy

B.clever

C.brave

D.afraid小题4:He didn’t like me to know ___________ of the accident. He told me a white lie at last.

A.the reason

B.the true story

C.the meaning

D.the answer小题5:He is ______________today. He is told that his father is seriously ill.

A.blue

B.yellow

C.green

D.white