题目内容
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[主观题]
求下列函数f（x)的f'-（0)及f'+（0)，又f'（0)是否存在：
求下列函数f(x)的f'-(0)及f'+(0)，又f'(0)是否存在：
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Dennis ,if you are late again, I’ll phone your parents .I’m(),you know.
A.serious
B.careful
C.true
D.promising
更多“求下列函数f（x)的f'-（0)及f'+（0…”相关的问题
第2题
7. You’d better ______ at home and ______ your homework.
A、A. to stay, do
B、B. stay, do
C、C. to stay, to do
D、D. stay, to do
第3题
“1 doubt that your parents will allow you to go out this evening” “I'm going Out__________‟‟
A.without they permitting
B.although they says other
C.no matter what they says
D.despite their saying it
第4题
—How do you visit your parents？—About three times a year.
—How do you visit your parents？
—About three times a year.
第5题
Talk about generation gap with your partner. You can take turns asking your partner the fo
llowing questions. 1. Do you like living with your parents？ 2. Do you ever have difficulty talking with your parents？ 3. What can be done about this problem？
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第6题
-- How often do you go to see your parents？-- ______.A．In no timeB．After a whileC．In a sho
-- How often do you go to see your parents？-- ______.
A．In no time
B．After a while
C．In a short time
D．From time to time
第7题
It’s hard to make friends if you stay home alone all the time. Get out of the house and do things that will （） , listen to the top CDs, learn about what’s new with your favorite TV or movie star.
第8题
A:（). B:She works in the Oxford University.A. What does your mother do？B. What do you
A:(). B:She works in the Oxford University.
A. What does your mother do？
B. What do your parents do？
C. What are your parents doing at the moment？
第9题
—How do you visit your parents？ --About three times a year.A.muchB.longC.often
—How do you visit your parents？
--About three times a year.
A.much
B.long
C.often
第10题
— ______ do you write to your parents？— Twice a month.A．How longB．How soonC．How often
— ______ do you write to your parents？— Twice a month.
A．How long
B．How soon
C．How often
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