41.  In the real world, the market rarely leads to social efficiency: the marginal social benefits of most goods and services do not equal the marginal social cost.

42.  What they do most is that to teach us a lot of techniques for the future jobs and the academic achievements may be so rarely.

43.  Students rarely have the chance to contact their teachers except in class.

44.  Students rarely have the chance to contact their teachers except in class.

45.  Students rarely have the chance to contact their teachers except in class.

46.  At the same time, Nepal maintained the number of the program almost every year from 2003 to 2011, except for 2006 and 2010, which means the program in Nepal rarely stopped.

47.  Just like Nepal, India's programs rarely stopped, as new program run almost every year.

48.  Violence is rarely justifiable as a means of questioning authority, peaceful challenges to political and legal authority, by many people, are not only justifiable but actually necessary when it comes to enhancing and even preserving society's well-being.

49.  Students rarely have the chance to contact their teachers except in class.

50.  Nevertheless, it is rarely an easy way for all of us to acquire without great effort.