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第一部分选择题(共36分)一.选择题(下列各题所给答案中,只有一个答案是正确的。每小题3分,共36分) 1.2008的绝对值是() A.-2008 B.2008 C.-1/(2008) D.1/(2008) 2.下列运算中,正确的是() A.x~(2008)+x~(2009)=x~(4017) B.(a+b)~2=a~2+b~2
The first part of the multiple-choice questions (36 points in total) One. Multiple-choice questions (only one of the answers given in the following questions is correct. 3 points for each question, a total of 36 points) 1. The absolute value of 2008 is () A.-2008 B.2008 C.-1/(2008) D.1/(2008) 2. In the following operations, the correct one is () Ax~(2008)+x~(2009)=x~(4017) B.(a) +b)~2=a~2+b~2