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【单选题】
$\lim_{n\to \infty } \frac{10^n}{n!}$
A.
0
B.
$\infty$
C.
10
D.
1
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参考答案：
举一反三
【单选题】甲乙两艘船驶向一个不能同时停泊两艘船的码头，它们在一昼夜内到达的时间是等可能的。如果甲船的停泊时间是一小时，乙船的停泊时间是两小时，求它们中任何一艘都不需要等候码头空出的概率是多少？
A.
$\frac{1009}{1152}$
B.
$\frac{1011}{1152}$
C.
$\frac{1013}{1152}$
D.
$\frac{1015}{1152}$
【单选题】Together with _______, Ms. Yang conducted an analysis of long and difficult sentences, which might be difficult but really useful for us to understand this text.
A.
Zuo Wan and Zixiao
B.
Zuo Wan and Yuege
C.
Yunpeng and Yuege
D.
Yunpeng and Zixiao
【单选题】In the Student Research Project, in which Alex, Abbas, Jiehan and Huanrui had a deeper discussion on the topic of _______.
A.
intelligence across cultures
B.
pop culture in the Arab world
C.
academic writing skills
D.
getting along verbally and non-verbally
【单选题】Choose the most appropriate answer by completing the sentences below or answering the questions.1. Which of the following statement is NOT true?
A.
Alex prefers to stay indoors, because he feels discomfort.
B.
Alex prefers to stay indoors, because he wants to read novels.
C.
His eyes hurt, because it is heavily polluted in Beijing.
D.
Alex has a sore throat.
【单选题】根据本题题干回答以下（1）（2）题某班级学生的考试成绩数学不及格的占15%，语文不及格的占5%，这两门课都不及格的占3%（1）已知一学生数学不及格，他语文也不及格的概率是多少？
A.
0.2
B.
0.375
C.
0.5
D.
0.6
【单选题】下面结论正确的是
A.
$\lim_{x \to a} f(x)$不存在,则该点$f(x)$没有定义
B.
如果$f(x)$连续且$f(a)=0$,那么$x \to a$时,$\frac{1}{|f(x)|} \to +\infty$.
C.
极限存在不一定唯一
D.
数列的子列收敛则数列一定收敛
【单选题】在平面上画有间隔为$d$的等距平行线，向平面任意投掷一个边长为$a,b,c$（均小于$d$）的三角形，求三角形与平行线相交的概率
A.
$\frac{a+2b+c}{2{\pi}d}$
B.
$\frac{a+b+c}{{\pi}d}$
C.
$\frac{a+b+2c}{{\pi}d}$
D.
$\frac{a+b+c}{2{\pi}d}$
【单选题】$\lim_{N\to \infty } \, \left(\sum _{n=1}^N \frac{1}{n!}\right)$
A.
$e$
B.
$e-1$
C.
$\infty$
D.
$2e$
相关题目：
【单选题】甲乙两艘船驶向一个不能同时停泊两艘船的码头，它们在一昼夜内到达的时间是等可能的。如果甲船的停泊时间是一小时，乙船的停泊时间是两小时，求它们中任何一艘都不需要等候码头空出的概率是多少？
A.
$\frac{1009}{1152}$
B.
$\frac{1011}{1152}$
C.
$\frac{1013}{1152}$
D.
$\frac{1015}{1152}$
【单选题】Together with _______, Ms. Yang conducted an analysis of long and difficult sentences, which might be difficult but really useful for us to understand this text.
A.
Zuo Wan and Zixiao
B.
Zuo Wan and Yuege
C.
Yunpeng and Yuege
D.
Yunpeng and Zixiao
【单选题】In the Student Research Project, in which Alex, Abbas, Jiehan and Huanrui had a deeper discussion on the topic of _______.
A.
intelligence across cultures
B.
pop culture in the Arab world
C.
academic writing skills
D.
getting along verbally and non-verbally
【单选题】Choose the most appropriate answer by completing the sentences below or answering the questions.1. Which of the following statement is NOT true?
A.
Alex prefers to stay indoors, because he feels discomfort.
B.
Alex prefers to stay indoors, because he wants to read novels.
C.
His eyes hurt, because it is heavily polluted in Beijing.
D.
Alex has a sore throat.
【单选题】根据本题题干回答以下（1）（2）题某班级学生的考试成绩数学不及格的占15%，语文不及格的占5%，这两门课都不及格的占3%（1）已知一学生数学不及格，他语文也不及格的概率是多少？
A.
0.2
B.
0.375
C.
0.5
D.
0.6
【单选题】下面结论正确的是
A.
$\lim_{x \to a} f(x)$不存在,则该点$f(x)$没有定义
B.
如果$f(x)$连续且$f(a)=0$,那么$x \to a$时,$\frac{1}{|f(x)|} \to +\infty$.
C.
极限存在不一定唯一
D.
数列的子列收敛则数列一定收敛
【单选题】在平面上画有间隔为$d$的等距平行线，向平面任意投掷一个边长为$a,b,c$（均小于$d$）的三角形，求三角形与平行线相交的概率
A.
$\frac{a+2b+c}{2{\pi}d}$
B.
$\frac{a+b+c}{{\pi}d}$
C.
$\frac{a+b+2c}{{\pi}d}$
D.
$\frac{a+b+c}{2{\pi}d}$
【单选题】$\lim_{N\to \infty } \, \left(\sum _{n=1}^N \frac{1}{n!}\right)$
A.
$e$
B.
$e-1$
C.
$\infty$
D.
$2e$
参考解析：
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