皮皮学，免费搜题
登录
搜题
【单选题】
已知一元函数【图片】, 则【图片】在点【图片】处连续、可导、及可微三者之间的关系是：A.
可导是可微的充要条件
B.
连续是可微的充分条件
C.
可微不是连续的充分条件
D.
连续是可导的充要条件
E.
连续是可微的充要条件
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】One fundamental flaw of e-mail phones is that people cannot use it to ______.
A.
receive or send e-mails with attached files
B.
receive attached files with documents
C.
read attached files with graphics
D.
read only messages in the form. of simple text
【简答题】现金周转期模型可以分为() A存货周转期. B.应收账款周转期 C.应付账款周转期 D.现金周转期 E.短期借款周转期
【单选题】0Re fundamental flaw of e-mail phones is that people cannot use it to
A.
receive or send e-mails with attached files．
B.
receive attached files with documents．
C.
read attached files with graphics．
D.
read only messages in the form. of simple text．
【简答题】阅读理解：People in some countries cannot use their native language for Web addresses. Neither can Chinese speakers, who have to rely on pinyin. But last Friday, ICANN, the Web’s governing body, approved t...
【单选题】Coming to another country to study requires a big adjustment and it usually takes a while to ________. [ ]
A.
fit in
B.
calm down
C.
keep up
D.
get away
【单选题】We can infer from the 2nd paragraph that:
A.
people in poor countries cannot use computer because of illiteracy.
B.
poor people cannot use computers.
C.
there would be no magic to cause a computer to appear in every household on earth.
D.
people in poor countries need more basic living conditions than computers.
【单选题】现金周转期和存货周转期、应收账款周转期和应付账款周转期都有关系。一般来说,下列会导致现金周转期缩短的是( )
A.
存货周转期变长
B.
应收账款周转期变长
C.
应付账款周转期变长
D.
应付账款周转期变短
【简答题】People cannot reach an agreement on the use of science and technology. For example, will radiation from electronic equipment destroy the environment? Should medical scientists change gene structures t...
【单选题】It was while she was reading a book in her study ______ a thief broke into the house.
A.
when
B.
that
C.
so
D.
what
相关题目：