大学英语自学教程下册课后习题答案unit11-15 第十一单元 Text A Exercises for the TextI. 1.b 2.d 3.a 4.d 5.dII. 1.disorder 2.development(advances) 3.irrelevant 4.misleading 5.irresponsible 6.eventual7.reduce 8.undergo 9.alternative 10.ethicalIII.1.The use of animals can help the development of a. anesthetics b. vaccines c. treatments for diabetes d. cancer e. developmental disorder2.The three Rs suggested by FRAME area. Reduction b. Refinement c. Replacement and their individual meanings area. t
