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【单选题】
有关大肠杆菌肽链延伸叙述中,不恰当的一项是( )A.
、进位是氨酰 -tRNA 进入大亚基 A 位点
B.
、进位过程需要延伸因子 EFTu 及 EFTs 协助完成
C.
、甲酰甲硫氨酰－ tRNA f 进入 70S 核糖体 A 位同样需要 EFTu － EFTs 延伸因 子作用
D.
、进位过程中消耗能量由 GTP 水解释放自由能提供
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【单选题】The miserable fate of Enron's employees will be a landmark in business history, one of those awful events that everyone agrees must never be allowed to happen again. This urge is understandable and no...
A.
Because the company has gone bankrupt.
B.
Because such events would never happen again.
C.
Because many Enron workers lost their retirement savings.
D.
Because it signifies a turning point in economic security.
【单选题】Thousands of employees chose Enron as their sole investment option mainly because ______ .
A.
the 401(k) made them responsible for their own future
B.
Enron offered to add company stock to their investment
C.
their employers intended to cut back on pension spending
D.
Enron's offer was similar to a defined-benefit plan
【判断题】After the Enron crisis, Public Company Act was issued by Congress in 25 July, 2002.
A.
正确
B.
错误
【简答题】Enron's reputation was ___________ after the allegations of financial malpractice.
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