Under the influence of alcohol, people will ______.
A. have a clear mind and be more aggressive
B. commit self-destructive behavior
C. suffer both natural and unnatural death
D. be more alert and excited
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With his poor English, he even cannot get his ideas across, ______ exert any essential effect on others.
A. let alone
B. that's to say
C. not to speak
D. not to say
Where, in the author's eyes, does the great significance of the book by Hugh Barnes lie in
A. It can serve as a resource for the better understanding of Russian history.
B. Its objectivity mid the accuracy of the data gotten from fieldwork.
C. It reveals the origin and his personality of Abram Petrovich Gannibal.
D. It makes great contribution to the academics: fame and money.
They are talking vigorously about the people and countries ______ they had visited.
A. which
B. that
C. what
D. where
下列有关密码的错误叙述是
A. 密码无标点符号
B. 有终止密码和起始密码
C. 密码有简并性
D. 密码有通用性
E. 蛋白质中的氨基酸均有相应密码
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