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河北建筑工程学院-建筑工程技术（专科）-大学英语1
12. Copper as well as most metals _____ of electricity, but wood is a poor one.
A. is a good conductor
B. are good conductors
C. is a good insulator
D. are good insulators
13. Air cannot be an element _____ an element cannot be separated. A. in that B. except that C. but that D. now that
14. Most of the students _____ in the school are talented young people. A. study B. studied C. studying D. to study
15. The pressure_____ causes the National Team to be energetic, but it also makes the members nervous. A. to compete B. competing C. to be competed D. having competed
13. Air cannot be an element _____ an element cannot be separated. A. in that B. except that C. but that D. now that
14. Most of the students _____ in the school are talented young people. A. study B. studied C. studying D. to study
15. The pressure_____ causes the National Team to be energetic, but it also makes the members nervous. A. to compete B. competing C. to be competed D. having competed