题目内容

成人甲状腺功能低下,会导致()

A. 呆小症
B. 侏儒症
C. 肢端肥大症
D. 尿崩症
E. 阿狄森病

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在老师和同学的鼓励下,他成功地作了第一次演讲。

What special tasks were not the first dogs bred for()

A. Hunting and protection.
B. Chasing prey.
C. Herding livestock.
D. Keeping accompany.

Shortly after the war, my brother and I were invited to spend a few days with an uncle who had just returned from abroad. He had rented a cottage in the country, although he rarely spent much time there. We understood the reason for this after our arrival: the cottage had no comfortable furniture in it, many of the windows were broken and the roof leaked, making the whole house damp.On our first evening, we sat around the fire after supper listening to the stories which our uncle had to tell of his many adventures in distant countries. I was so tired after the long train journey that I would have preferred to go to bed ; but I could not bear to miss any of my uncle’s exciting tales.He was just in the middle of describing a rather terrifying experience he had once had when there was a loud crash from the bedroom above, the one where my brother and I were going to sleep."It sounds as if the roof has fallen in! "exclaimed my uncle, with a loud laugh.When we got to the top of the stairs and opened the bedroom door, we could see nothing at first because of the thick clouds of dust which filled the room. When the dust began to clear, a strange sight met our eyes. A large part of the ceiling had collapsed, falling right onto the pillow of my bed. I was glad that I had stayed up late to listen to my uncle’s stories, otherwise I should certainly have been seriously injured, perhaps killed.That night we all slept on the floor to the sitting room downstairs, not wishing to risk our lives by sleeping under a roof which might at any moment collapse on our heads. We left for London the very next morning and my uncle gave up his cottage in the country. This was not the kind of adventure he cared for either! When they opened the bedroom door, they could see nothing at first because ()

A. it was completely dark inside
B. dust was blown into their eyes
C. something strange blinded them
D. there was too much dust in the air

甲状旁腺激素对肾发挥的作用是通过

A. cAMP-PKA信息传递途径
B. cGMP-PKA信息传递途径
C. cAMP-PKC信息传递途径
DG/PKC信息传递途径
E. JAK-STAT信息传递途径

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