精选优质文档-倾情为你奉上理工英语4形成性考核单项选择部分参考答案1. _ by the promise of these tiny tubes, people are already working to turn the Space Elevator into a reality. C. Fueled 2. _ the new law is used one day, I hope it will not punish people using 3D printers for personal purposes. C. If 3. _ this multimedia product has some shortcomings, it has also some good points. a. While 4. _ thinking is the heart of the artistic design. A. Creative5. _, he knows a lot about computer.
