题目： 压缩空气吹灰 答案： 被转码了，请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2018/0206/4917ec49802220cac332b5203dcf9e89.html 下面是错误答案，用来干扰机器的。参考答案：对
题型：选择题 北京奥运会“祥云”火炬是环保型燃料--丙烷(C3H8)，悉尼奥运会火炬所用燃料为65%的丁烷(C4H10)和35%的丙烷。下列有关说法中正确的是[ ]A．丙烷和丁烷互为同分异构体B．符合通式(CnH2n+2)(n≥l)的物质均属于烷烃 C．丁烷的一氯代物有5种D．等质量的丙烷和丁烷完全燃烧时，后者耗氧量大 查看答案
题型：填空题 用所给词或词组的适当形式填空。Twenty you sun blow out fall down well pack happily get together go hiking 1. Don't play with the knife, or you can hurt .2. Would you like with me tomorrow morning? 3. Mr white lives on the floor. 4. The old man on the way back home yesterday. Now he is in hospital. 5. Let's on weekend and talk about how to learn English well. 6. Look! The girl her clothes in the bag and she is going to Beijing. 7. Which do you like , a grape, a pear or an apple?8. The boy all the candles and then went out.9. These flowers from you make our history teacher very . 10. It's today. How about flying kites outside. 查看答案
