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【多选题】
How do the hormones maintain the blood glucose levels constant?A.
The minute-by-minute adjustments that keep the blood glucose level near 4.5 mM involve the combined actions of insulin, glucagon, epinephrine, and cortisol on metabolic processes in many body tissues, but especially in liver, muscle, and adipose tissue.
B.
Insulin signals these tissues that blood glucose is higher than necessary; as a result, cells take up excess glucose from the blood and convert it to glycogen and triacylglycerols for storage.
C.
Glucagon signals that blood glucose is too low, and tissues respond by producing glucose through glycogen breakdown and (in the liver) gluconeogenesis and by oxidizing fats to reduce the need for glucose.
D.
Epinephrine is released into the blood to prepare the muscles, lungs, and heart for a burst of activity. Cortisol mediates the body’s response to longer-term stresses.
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【简答题】下列命题中： ①函数 f(x)=x+ 2 x (x∈(0，1)) 的最小值是 2 2 ； ②对于任意实数x，有f（-x）=-f（x），g（-x）=g（x）且x＞0时，f′（x）＞0，g′（x）＞0，则x＜0时，f′（x）＞g′（x）； ③如果y=f（x）是可导函数，则f′（x 0 ）=0是函数y=f（x）在x=x 0 处取到极值的必要不充分条件； ④已知存在实数x使得不等式|x+1|-|x-1|≤...
【单选题】下列命题中：①函数 的最小值是 ； ②在△ABC中，若sin2A=sin2B，则△ABC是等腰或直角三角形； ③如果正实数a，b，c满足a+b＞c，则 ； ④如果y=f(x)是可导函数，则f′(x 0 )=0是函数y=f(x)在x=x 0 处取到极值的必要不充分条件； 其中正确的命题是 [ ]
A.
①②③④
B.
①④
C.
②③④
D.
②③
【单选题】Shall we go on to the terms of payment?。正确的翻译是()
A.
现在可以按条件付款吗?
B.
现在可以谈谈付款条件吗?
C.
现在可以继续我们的付款条件吗?
【多选题】三章 三节 P94 95Z 仓库布局规划( )
A.
有利于仓储企业生产的正常进行
B.
有利于提高仓储经济效率
C.
有利于保证安全生产和文化生产
D.
有利于保证安全生产和文明生产
【判断题】Presentment for payment means that the holder shall, within a reasonable time, present the bill to the drawee rather than demand immediate payment. Therefore, the bill presented shall be a sight bill.
A.
正确
B.
错误
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