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【单选题】
、求方案乙所需化验次数为2次的概率
A.
1/5
B.
2/5
C.
1/2
D.
3/5
参考答案：
参考解析：
刷刷题刷刷变学霸
举一反三
【单选题】How to engage in other people’s discussion in a seminar when you are not fully prepared?
A.
Follow the lecture closely and look for opportunities to ask relevant questions.
B.
Pretend you’re fully prepared and listen carefully
C.
Ask people around for help
D.
Record all the lecture and learn it later by yourself
【单选题】$\lim_{x\to 1} \, \frac{x^3-1}{x^4-1}$
A.
$1$
B.
$\frac{3}{4}$
C.
$\frac{4}{3}$
D.
$-1$
【单选题】The baby carrying the DNA of three parents is an experimental specimen, aiming at ______.
A.
having more babies
B.
having babies with genetic modification
C.
eliminating genetic diseases in newborns
D.
innovating in the field of life science
【单选题】B-trees are 树结构上的特点是：
A.
short and chubby, with each node having at most two children矮胖，每个节点至多两个孩子
B.
short and chubby, with each node having potentially many children矮胖，每个节点可有多于两个孩子
C.
tall and slim, with each node having at most two children瘦高，每个节点至多两个孩子
D.
tall and slim, with each node having potentially many children瘦高，每个节点可有多于两个孩子
【单选题】In the Student Research Project part, in which ______ had a deeper discussion on the intriguing topic of “the world’s first baby born with the DNA from 3 parents”.
A.
Alex, Abbas, Alice and Ruohui.
B.
Alex, Abbas, Jiehan and Billy.
C.
Alex, Abbas, Alice and Saba.
D.
Alex, Abbas, Jiehan and Huanrui.
相关题目：
【单选题】How to engage in other people’s discussion in a seminar when you are not fully prepared?
A.
Follow the lecture closely and look for opportunities to ask relevant questions.
B.
Pretend you’re fully prepared and listen carefully
C.
Ask people around for help
D.
Record all the lecture and learn it later by yourself
【单选题】$\lim_{x\to 1} \, \frac{x^3-1}{x^4-1}$
A.
$1$
B.
$\frac{3}{4}$
C.
$\frac{4}{3}$
D.
$-1$
【判断题】运动本身就是一种社交。
A.
正确
B.
错误
【单选题】The baby carrying the DNA of three parents is an experimental specimen, aiming at ______.
A.
having more babies
B.
having babies with genetic modification
C.
eliminating genetic diseases in newborns
D.
innovating in the field of life science
【多选题】判断一个国家或地区体育人口的标尺，有哪三个关键变量？
A.
生产力
B.
频度
C.
持续时间
D.
强度
【单选题】$\lim_{x\to 0} \, \frac{(x+1)^{\frac{1}{n}}-1}{x}$
A.
0
B.
1
C.
$n$
D.
$\frac{1}{n}$
【单选题】、求依方案甲所需化验次数不少于依方案乙所需化验次数的概率
A.
0.8
B.
0.72
C.
0.64
D.
0.56
【单选题】$\lim_{x\to \infty } \, \frac{\sqrt{x^2+3}}{2 x-5}$
A.
1
B.
0
C.
2
D.
$\frac{1}{2}$
【单选题】B-trees are 树结构上的特点是：
A.
short and chubby, with each node having at most two children矮胖，每个节点至多两个孩子
B.
short and chubby, with each node having potentially many children矮胖，每个节点可有多于两个孩子
C.
tall and slim, with each node having at most two children瘦高，每个节点至多两个孩子
D.
tall and slim, with each node having potentially many children瘦高，每个节点可有多于两个孩子
【单选题】In the Student Research Project part, in which ______ had a deeper discussion on the intriguing topic of “the world’s first baby born with the DNA from 3 parents”.
A.
Alex, Abbas, Alice and Ruohui.
B.
Alex, Abbas, Jiehan and Billy.
C.
Alex, Abbas, Alice and Saba.
D.
Alex, Abbas, Jiehan and Huanrui.
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