A.sum(B11:c$15) B.sum(B11:c15) C.sum(c$11:c$25) D.sum(B$11:c$15)
A.垂直于 B.平行于 C.傾斜于 D.相等于
A.著色檢驗(yàn) B.X射線探傷 C.磁粉探傷 D.超聲波探傷