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来源:百度文库 编辑:高考问答 时间:2024/05/11 17:13:55
1、根据(x-y)(x+y)=x^2-y^2,用(x-y)(x+y)做外项,写成比例式为__________
2、化简:√[2x+13+√(128x-192)]-√[2x-2+√(8x-12)](请提供解题思路或者过程)
3、设√(23-√448)的整数部分为a,小数部分为b,求a^2-b^2的值。(同上)
4、Mary was born _____ the morning____July 12
A.on...in B. in...on C.on...of D.of...on
5、I prefer _______ to _______ .
A.read books....watch TV
B.reading books....watch TV
C.to read books....watch TV
D.reading books....watching TV
2、化简:√[2x+13+√(128x-192)]-√[2x-2+√(8x-12)](请提供解题思路或者过程)
3、设√(23-√448)的整数部分为a,小数部分为b,求a^2-b^2的值。(同上)
4、Mary was born _____ the morning____July 12
A.on...in B. in...on C.on...of D.of...on
5、I prefer _______ to _______ .
A.read books....watch TV
B.reading books....watch TV
C.to read books....watch TV
D.reading books....watching TV
4。C
5.D
4.C