皮皮学，免费搜题
登录
搜题
【判断题】
若函数 在有界集 上连续,则 在D上有界A.
正确
B.
错误
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】Which of the following statements is true according to the passage?
A.
Writing changes as fast as speech.
B.
Children do not write as well as adults.
C.
Speech changes faster than writing.
D.
Older people make fewer mistakes in speech.
【简答题】将断面图形画在视图之内的断面图称为()。
【简答题】连词成句，注意标点符号和大小写。 1. season best Which like you do (?) 2. Winter like best I (.) 3. is favourite season Fall my (.)
【简答题】In this section, you are asked to write a composition entitled Which Is More Important, Family or Career? Your composition should be about 150 words.
【单选题】Which is NOT true about e-mail?
A.
It is sent through the telephone line.
B.
It is good for family relationship.
C.
Only people good at writing like e-mail.
D.
E-mail is becoming very popular in people's life and work.
【简答题】画在视图之外的断面图称为____,画在视图之内的断面图称为____。
【单选题】Which of the following titles is most appropriate to the passage?
A.
Polarity Reversal: A Fantastic Phenomenon of Nature.
B.
Measurement of the Earth's Magnetic-Field Intensity.
C.
Formation of the Two Poles of the Earth.
D.
A New Approach to the Study or Geophysics.
相关题目：