40.

33.

48. The moon-landing is mentioned in the first paragraph to illustrate ________.

43.How many students can get A in college nowadays?

44. Research into the material culture of a nation is of great importance because ________

32.

42. The passage mentions that the grade F was once banned at ______

8. We ______ any attempts to infiltrate company networks to obtain user information.

46. According to the author, music notation is important because ________

10.从内涵上看，社会意识形态包含了属于上层建筑的社会意识形式以及非上层建筑的社会意识形式。（ ）

7. The supporters of death penalty argue that the regulation would _______ criminals from carrying guns.

20. I hope all the precautions against air pollution, ______ suggested by the local government, will be seriously considered here.