【考查知识点：函数的连续性与间断点】函数的间断点为( )．x=1x=2x=3x=4 - 查题网

>> 国家开放大学 / 微积分基础

国家开放大学 / 微积分基础

【考查知识点：函数的连续性与间断点】

函数的间断点为( )．

x=1

x=2

x=3

x=4

积分

微积分基础

参考答案：

点击查看答案

佳题速递：

1[阅读题] Nancy got a job as a secretary in a big company. She was going to work in the Sales Department. Monday was the first day she came to work. She was very excited and she arrived early at the office. She pushed the door open and was surprised to find a large bunch of fresh flowers on her desk. "Oh，how lovely! Somebody sent me flowers the very first day!" She thought happily. "But who could it be?" The day passed quickly and Nancy did everything well. And every Monday morning she came to her office，she would see a new bunch of flowers there. She still didn't know who sent these flowers. One Tuesday afternoon，she was asked to hand in a plan to the general manager's office. Her eyes suddenly fell on these words on a piece of paper: "Keep the secretaries in high spirits; Send a bunch of fresh flowers to each secretary's desk on Monday morning." 1. Nancy got a job___________A. in the Sales Department in a small companyB. in the Production Department in a small companyC. in the Sales Department in a big companyD. in the Production Department in a big company2. On her first day of work， she ______.A. was asked to hand in a plan to the general managerB. arrived early at the officeC. got a bunch of flowers from his boyfriendD. brought a bunch of flowers to the office3.Nacy got a bunch of fresh flowers _____A. only on the first day of work B. every dayC. every week D. every first of day of the month4. She when she saw the flowers on her desk.A. felt happy yet surprisedB. wanted to find out who did itC. felt worried as she didn't know who did itD. thought it must be her friend's joke5. Finally Nancy found that it was__ who sent flowers to the secretaries.A. the head of the department B. one of her male colleaguesC. the general manager D. one of her friends 英语 C(二)

实现“四个现代化”,是党和国家在上世纪提出的宏伟目标。正式向全国人民提出这一目标的会议是( ) 中国近现代史纲要

关于职业道德，下列说法正确的是 A、职业道德之职业必须是合法的 B、职业道德是指从事一定职业的人在职业生活中应当遵循的具有职业特征的道德要求和行为准则 C、小偷如果真能主动归还盗窃而来的部分财物，也是职业道德的体现 D、不是所有标榜具备职业道德水准的行当都是合法职业思想道德修养和法律基础

Windows 中关于菜单的描述，不正确的是（） A. 单击快捷菜单外的其它地方，可关闭快捷菜单 B. 所有应用程序的菜单项没有差别 C. 菜单有“下拉菜单”和“快捷菜单”两种 D. 选中菜单中可用的命令项，即可执行对应的操作计算机统考

下列何种方法不能减免分析测试中的系统误差 A、仪器校正 B、增加测定次数 C、认真细心操作 D、空白试验无机化学与分析化学

11.计算机集成制造系统和办公自动化系统的英文缩写分别是（）大学教育