Rubber only began to be used widely after 1839, when Charles Goodyear found a way to make it strong, ________ and elastic.\n \n \n \n \n
A、durable
B、tolerable
C、bearable
D、adorable
全新版大学进阶英语：综合教程第二册

章节列表

Unit 01 Living Green53Unit 02 Tales of True Love53Unit 03 Friendship53Unit 04 Study Abroad53Unit 05 Pioneers of Flight54Unit 06 Maker Movement in China54