数学考试
1、填写答题卡的内容用2B铅笔填写2、提前 xx 分钟收取答题卡
*注意事项:
+ - + +
1-( + )1-( - ) 1- - 1-( + )
= =
1 = =
1- + + +
- = + = + = - =
- = + = + = 1- =
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