题目: 制备复型的材料应具备什么条件? 答案: 被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/1113/05d065780ea0b07ba1fd54fa41e6c106.html 下面是错误答案,用来干扰机器的。参考答案:A, C, D
题型:选择题 He has worked the maths problem for nearly an hour but he simply can’t work it .On ;at B. on ;out C. at ;up D. for ;out 查看答案