2011 University of Cambridge International ExaminationsInternational General Certificate of Secondary EducationA-level 真题Find the length of the straight line from Q (-8, 1) to R (4,6)QR=()
单选题
2011 University of Cambridge International ExaminationsInternational General Certificate of Secondary EducationA-level 真题Find the length of the straight line from Q (-8, 1) to R (4,6)QR=()