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【单选题】
In the Academic Writing part, Alex discussed with Ruoqi on academic skills, such as ______.
A.
plagiarism, paraphrasing and summarizing
B.
plagiarism, paraphrasing and synthesizing
C.
how to avoid plagiarism, paraphrase and summarize
D.
how to avoid plagiarism, paraphrase and synthesize
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参考解析:
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【单选题】$\lim_{n\to \infty } \, e^{-n}$
A.
0
B.
1
C.
-1
D.
$\infty$
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【单选题】If it would take us a second for a single memory access, how long would it cost for a single access to the external storage?如果说访问一次内存需要1秒,则一次外存访问大概需要:
A.
a hour 1小时
B.
a day 1天
C.
a month 1月
D.
a year 1年
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【单选题】$\lim_{x\to \infty } \, \left(\sqrt{x+\sqrt{x+\sqrt{x}}}-\sqrt{x}\right)$
A.
$0$
B.
$1$
C.
$\frac{1}{2}$
D.
$2$
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【单选题】$\lim_{n\to \infty } \, \frac{\ln (n)}{\ln (3 n)}$
A.
$\frac{1}{3}$
B.
$3$
C.
$1$
D.
不存在
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【单选题】$\lim_{n\to \infty } \, \cos (\pi n)$
A.
1
B.
0
C.
-1
D.
不存在
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【单选题】$\lim_{x\to -\infty } \, \frac{e^x-e^{-x}}{e^x+e^{-x}}$
A.
1
B.
-1
C.
0
D.
$+\infty$
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【多选题】运动休闲可以( )。
A.
减轻医疗负担
B.
增强抵抗力
C.
减少疾病
D.
促进心理健康
E.
缓解精神压力
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【单选题】Through the group discussion between ______ , we figured out the differences between adolescence and adulthood.
A.
Abbas, Zuowan and Jialin
B.
Billy, Xuanhui and Jialin
C.
Abbas, Xuanhui and Jialin
D.
Billy, Xuanhui and Zixiao
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【单选题】In the main part of Text A, ______ showed us some opinions on the relationship between musical experiences and intelligence.
A.
Kamlesh
B.
Jason
C.
John
D.
Abbas
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【单选题】What's the time complexity for searching in a B-tree of order 4 and size n?在存储了n个元素的4阶B树中查找,单个节点进行一次查找的时间复杂度为:
A.
O(1)
B.
O(lgn)
C.
O(n)
D.
O(nlgn)
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