01851nam a2200385 i 4500 OSt 20231011163705.0 231011s2022 cc a j 000 1 chi d 9787531975441 RM43.20 paperback PPAK eng PPAK RDA chi eng 23 813.6 813.6 COL K 880-01 Cole, David, 1957- author. 880-02 Shu xue xiao tian cai tan an zu. San jiao de mi mi / Dawei Keer, Xiangnong Aotuer zhu ; Liu Yongjun yi Translation of: The math kids : the triangle secret Di 1 ban Harbin : Heilongjiang Children's Publishing House, 2022 202 pages : illustrations ; 21 cm text rdacontent unmediated rdamedia volume rdacarrier "When FBI Special Agent Carlson is kidnapped while investigating the plane crash of Willard Howell, an eccentric billionaire inventor, the Math Kids spring into action. If Catherine, Stephanie, Justin, and Jordan can figure out the Great Triangle mentioned in Howell's will, they might just uncover who's behind the crash and Agent Carlson's kidnapping--if they don't get caught themselves!"-- Provided by publisher In simplified Chinese scripts. Children's stories Kidnapping Juvenile fiction Mathematics Juvenile fiction School children Juvenile fiction Children's stories O'Toole, Shannon, illustrator. Liu, Yongjun, translator. 100-01 科尔、大卫·, 1957- author. 245-02 数学小天才探案组. 三角的秘密 / (加)大卫·科尔，(加)香农·奥图尔著 ; 刘勇军译 ddc B 193346 193346 0 0 PPAK K 2024-01-14 3 1 K 813.6 COL A01801885 2025-02-12 16:44:40 2025-01-22 B 0 0 SP K 2024-01-14 4 K 813.6 COL A01801886 2025-12-06 11:26:35 2025-11-16 B