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【多选题】
以下说法正确的是A.
复利终值和复利现值互为逆运算
B.
单利终值个复利现值互为逆运算
C.
偿债基金和普通年金终值互为逆运算
D.
投资回收和普通年金终值互为逆运算
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反馈参考答案：
举一反三
【简答题】一个 T 触发器,在 T=1 时,来一个时钟脉冲后,则触发器 ( ) 。
【简答题】protein kinase A system (PKA系统)
【简答题】蛋白激酶(protein kinase)
【多选题】How does cAMP exert its effects via activating cyclic- AMP-dependent protein kinase (PKA) ?
A.
Cyclic AMP exerts most of its effects by activating the enzyme cyclic- AMP-dependent protein kinase (PKA).
B.
This enzyme is normally held inactive in a complex with a regulatory protein. The binding of cyclic AMP to the regulatory protein forces a conformational change that releases the inhibition and unleashes the active kinase.
C.
Activated PKA then catalyzes the phosphorylation of particular serines or threonines on specific intracellular proteins, thus altering the activity of these target proteins.
D.
In different cell types, different sets of proteins are available to be phosphorylated, which largely explains why the effects of cyclic AMP vary with the type of target cell.
【简答题】Android中把数据存储到SD卡对应的目录是 。A. /mnt/sdcard
【简答题】蛋白激酶(protein kinase，PK)
【单选题】Which of the following is a protein kinase?
A.
erythropoietin receptor
B.
STAT5
C.
DAG
D.
EGF receptor
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