4 Neither___right. A. answers are B. answers aren't C. answer is D. answer isn't 为什么选C
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4Neither___right.A.answersareB.answersaren''tC.answerisD.answerisn''t为什么选C4Neither___right.A.answersar
4 Neither___right. A. answers are B. answers aren't C. answer is D. answer isn't 为什么选C
4 Neither___right. A. answers are B. answers aren't C. answer is D. answer isn't 为什么选C
4 Neither___right. A. answers are B. answers aren't C. answer is D. answer isn't 为什么选C
Neither它本身就具有否定意义,如果要加否定的话不在谓语上进行否定.
4 Neither___right. A. answers are B. answers aren't C. answer is D. answer isn't 为什么选C
化简(a/a-2-a/a+2)×4-a/a(a/a-2-a/a+2)×4-a/a
a^2-4a
4a-1/a
a-2a+3a-4a+5a-6a+...+99a-100a
化简; a-2a+3a-4a+5a-6a+``````-2006a+2007a.
(a+3a+5a+...+2009a)-(2a+4a+6a+...+2008a)=
(a+3a+5a+.+2009a)-(2a+4a+6a+.2008a)
计算(a+3a+5a+...+2009a)-(2a+4a+6a+...+2010a)
(a+3a+5a+...+2013a)-(2a+4a+6a+...+2012a)=
化简:a-2a+3a-4a+5a-6a+.+2010a+2011a.
计算(a+3a+5a+.+2003a)-(2a+4a+6a+...+2004a)
(a+3a+5a+.+2003a)-(2a+4a+6a+.+2004a)
计算;(a^3)^4+a^10×a^2-a×a^2-a*a^3*a^8
(a+3a+5a...+2009a)-(2a+4a+6a+...+2010a)=?
a(a-1)(a-2)(a-3)(a-4)因式分解
【1】a+a=a×a a= [ ]【2】a×a=a÷a a=[ ]【3】a×a=a-a a=[ ] [4]a-a=a+a a=[ ]
计算[(a-1)/a*a-4*a+4]-[(a+2)/(a*a-2*a*a)]-4/a