作业帮______does the first class begin?Tom finds the shoes _______the right size._________nice dining room!We can make a snowman in_________.What will you take _______you?We visit one of my ________from London.She finishes_______it first.We can make a snow
来源：学生作业帮助网 编辑：作业帮 时间：2024/07/31 16:36:15
______does the first class begin?Tom finds the shoes _______the right size._________nice dining room!We can make a snowman in_________.What will you take _______you?We visit one of my ________from London.She finishes_______it first.We can make a snow
______does the first class begin?
Tom finds the shoes _______the right size.
_________nice dining room!
We can make a snowman in_________.
What will you take _______you?
We visit one of my ________from London.
She finishes_______it first.
We can make a snowman in______.
I want to post a letter .Where can I bun a_____?
______does the first class begin?Tom finds the shoes _______the right size._________nice dining room!We can make a snowman in_________.What will you take _______you?We visit one of my ________from London.She finishes_______it first.We can make a snow
___When___does the first class begin?
Tom finds the shoes _____at__the right size.
_______What__nice dining room!
We can make a snowman in___time______.
What will you take ____from___you?
We visit one of my ____cousins____from London.
She finishes_____doing__it first.
We can make a snowman in___time___.
I want to post a letter .Where can I bun a_____?
你的题目打错了应该是：已知a的平方-4ab+4b的平方+2a-4b+1=0
这样 可解
a^2-4ab+b^2+2a-4b+1=0
(a-2b)^2+2(a-2b)+1=[a-2b+1]^2=0
a-2b+1=0
a-2b=-1
所以（a-2b)^2001=-1