TVET CHNS,Eng,Maths
高中
已解决

請問第6題要怎麼算><看詳解看不懂
答案是B

ata 16. a>0,設 a-al = 5,则a-a=?(A) 3 (B)3.5 (C)205 (D) -X) (ax_lta
數學a

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