题目内容
碳纳米管纤维的强度 是钢的100倍，而质 量仅为钢的1/7。
查看答案
搜索结果不匹配？点我反馈
更多问题
石墨烯是世界上第一个被发现的二维材料。
利用碳纳米管有可能帮助人们实现建造太空电梯的梦想。
石墨烯
选词填空Fill in the blanks with the right words or phrases. Change the form where necessary.have the makings ofrefer tofamiliarizequalitydeveloppossessdiffer fromreliableassistancecorrespondence1. The ______ of the service here has improved a lot since he was promoted to manager.2. Unless we receive more financial ______ from the government, the hospital will have to close.3. The manager thought he was a______ person and told him all about the new plan.4. The library bought all the______ between the President and his wife.5. She has three years experience of offie work, so she______ becoming an office professional.6. The police asked me if I______ a gun.7. The proposal will have to______ the Finance Committee.8. I wonder whether you will______ us with your technical know-how.9. A child______ repidly both physically and mentally between the ages of 13 and 16.10. Wedding customs______ from country to country.
微信支付 
支付宝支付