T分解代谢的产物为
A.β-羟基丁酸
B.β-氨基异丁酸
C.β-丙氨酸
D.尿酸

根据下列选项回答下列各 题。 A．血管紧张Ⅱ B．血管升压素 C．血管活性肠汰 D．心房纳尿肽 {TS}介导血浆晶体渗透压升高引起渴觉和饮水行为的神经肽是

A.血管紧张Ⅱ
B.血管升压素
C.血管活性肠汰
D.心房纳尿肽

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They had to get a helicopter to rescue him______.A．because the fire brigade’s ladders were too short to reach himB．because the fire engine was not powerful enoughC．because there was no way to get a ladder up to the roofD．because the fire brigade arrived too late to save the house 点击查看答案