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【单选题】
在讨论气囊胀开时,甲说气囊胀开后,驾驶员一侧的气囊在 1s 后瘪掉;从撞击瞬间起到气囊充满气为止的时间小于 100ms 。试问谁正确?A.
甲正确
B.
乙正确
C.
两人均正确
D.
两人均不正确
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【简答题】已知0＜α＜β＜γ≤2π，且cosα+cosβ+cosγ=0，sinα+sinβ+sinγ=0，求cos（β-α）的值，并求β-α．
【单选题】Pathway regulation can occur via the expression of tissue-specific isozymes. Glucose metabolism differs in red blood cells and liver in that red blood cells need to metabolize glucose, whereas the liv...
A.
The Km of hexokinase I is higher than the Km of glucokinase.
B.
The Km of hexokinase I is lower than the Km of glucokinase.
C.
The Km of hexokinase I is the same as the Km of glucokinase
D.
Hexokinase I is found in liver.
E.
Glucokinase is found in red blood cells.
【单选题】Akt, also called protein kinase B (PKB), promotes the growth and survival of many cell types, often by inactivating the signaling proteins it phosphorylates. For example, Akt phosphorylates and inacti...
A.
Bad (Bcl-2-associated agonist of cell death )
B.
Bcl-2
C.
Bax
D.
Bcl-xl
【简答题】The ultraviolet radiation in sunlight is also damaging to DNA; it promotes covalent linkage between two adjacent pyrimidine bases, forming, for example, the _____________.
【简答题】已知sinα+sinβ+sinγ=0，cosα+cosβ+cosγ=0，求cos（β-γ）的值．
【简答题】Glucagonraises blood glucose levels by stimulating the to metabolize glycogen into glucose molecules and to release glucose into the blood.
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