14秋东财《经济数学》在线作业123
东财《经济数学》在线作业一试卷总分:100 测试时间:--
[*]单选题
一、单选题(共 25 道试题,共 100 分。)
V
1.题见下图
http://file.open.com.cn/Lms/ItemDBAttachments/image/singleselect/dcwjfe/20051105/8f16adfa.JPG
A. 单调增加的;
B. 单调减少的;
C. 不增不减的;
D. 有增有减的
满分:4分
2.http://file.open.com.cn/Lms/ItemDBAttachments/image/singleselect/dcwjfe/20051113/07528cc2.JPG。A. A
B. B
C. C
D. D
满分:4分
3.题见下图
http://file.open.com.cn/Lms/ItemDBAttachments/image/singleselect/dcwjfe/20051105/1b879192.JPG
A. 递增;
B. 递减;
C. 不增不减;
D. 有增有减
满分:4分
4.题见图片
http://file.open.com.cn/Lms/ItemDBAttachments/image/singleselect/dcwjfe/20070515/6c8b141f.JPG
A. A
B. B
C. C
D. D
满分:4分
5.在区间(a,b)内任意一点函数f(x)的曲线弧总位于其切线的上方,则该曲线在(a,b)内是A. 凸;
B. 凹;
C. 单调上升;
D. 单调下降
满分:4分
6.题见下图
http://file.open.com.cn/Lms/ItemDBAttachments/image/singleselect/dcwjfe/20070515/70121ca6.JPG
A. A
B. B
C. C
D. D
满分:4分
7.题见下图
http://file.open.com.cn/Lms/ItemDBAttachments/image/singleselect/dcwjfe/20051104/ec3072a6.JPG
A. A
B. B
C. C
D. D
满分:4分
8.题见下图
http://file.open.com.cn/Lms/ItemDBAttachments/image/singleselect/dcwjfe/20070515/740e2631.JPG
A. A
B. B
C. C
D. D
满分:4分
9.题见下图
http://file.open.com.cn/Lms/ItemDBAttachments/image/singleselect/dcwjfe/20051104/7e5de731.JPG
A. A
B. B
C. C
D. D
满分:4分
10.函数y=f(x)在点x=a连续是f(x)在x=a有极限的A. 充要条件;
B. 充分条件;
C. 必要条件;
D. 无关条件
满分:4分
11.http://file.open.com.cn/Lms/ItemDBAttachments/image/singleselect/dcwjfe/20051113/0640da2c.JPG。A. (1/2,-1);
B. (-7/2,1);
C. (7/2,-1);
D. (1/2,1)
满分:4分
12.题见下图
http://file.open.com.cn/Lms/ItemDBAttachments/image/singleselect/dcwjfe/20051105/8eacfc0b.JPG
A. A
B. B
C. C
D. D
满分:4分
13.题见下图
http://file.open.com.cn/Lms/ItemDBAttachments/image/singleselect/dcwjfe/20070515/4e89cbbc.JPG
A. A
B. B
C. C
D. D
满分:4分
14.题见图片
http://file.open.com.cn/Lms/ItemDBAttachments/image/singleselect/dcwjfe/20071209/433762ec.JPG
A. A
B. B
C. C
D. D
满分:4分
15.题见图片
http://file.open.com.cn/Lms/ItemDBAttachments/image/singleselect/dcwjfe/20070712/9350234c.JPG
A. A
B. B
C. C
D. D
满分:4分
16.函数y=1/x在区间 ( )上无界A. (1,+∞);
B. (0,1);
C. (-∞,-1);
D. 以上都不对
满分:4分
17.题见下图
http://file.open.com.cn/Lms/ItemDBAttachments/image/singleselect/dcwjfe/20070515/10d8f72f.JPG
A. A
B. B
C. C
D. D
满分:4分
18.题见图片
http://file.open.com.cn/Lms/ItemDBAttachments/image/singleselect/dcwjfe/20051111/da0503f3.JPG
A. A
B. B
C. C
D. D
满分:4分
19.题见下图
http://file.open.com.cn/Lms/ItemDBAttachments/image/singleselect/dcwjfe/20070515/29c48939.JPG
A. A
B. B
C. C
D. D
满分:4分
20.题见图片
http://file.open.com.cn/Lms/ItemDBAttachments/image/singleselect/dcwjfe/20051111/91202384.JPG
A. A
B. B
C. C
D. D
满分:4分
21.http://file.open.com.cn/Lms/ItemDBAttachments/image/singleselect/dcwjfe/20051113/62d7e7c1.JPG。A. 是极大值;
B. 是极小值;
C. 不是极值;
D. 是极值
满分:4分
22.∫cotx(cotx-cscx)dx=A. cotx-x+cscx+c;
B. -cotx-x+cscx+c;
C. cotx-x-cscx+c;
D. -cotx-x-cscx+c
满分:4分
23.题见图片
http://file.open.com.cn/Lms/ItemDBAttachments/image/singleselect/dcwjfe/20051104/09bf2a1f.JPG
A. A
B. B
C. C
D. D
满分:4分
24.题见下图
http://file.open.com.cn/Lms/ItemDBAttachments/image/singleselect/dcwjfe/20051104/848fa5f0.JPG
A. A
B. B
C. C
D. D
满分:4分
25.http://file.open.com.cn/Lms/ItemDBAttachments/image/singleselect/dcwjfe/20051113/87e23556.JPG。A. A
B. B
C. C
D. D
满分:4分
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