1 A raising efficiency

　　2 B cut energy consumption

　　3 C get rid of air-conditioners

　　4 B some 40 percent

　　5D providing subsides

　　6A recycling heat and energy

　　7D We choose the most efficient models of refrigerators and other white goods

　　8Annual utility-bill savings

　　9Self-denial

　　10The market itself

　　仔细阅读

　　47 mother's support network

　　48 climb the corporate ladder

　　49 taken seriously

　　50 in a home office

　　51 stress

　　52 C One’s occupation affects the way one is treated as a person

　　53 A Some customers simply show no respect to those who serve them

　　54 D She found it natural for professionals to treat her as inferior

　　55 B Those working in the service industry shouldn’t be treated as servants

　　56 A See what kind of person they are

　　57 C The inequality in the distribution of wealth

　　58 C The American nation is becoming more and more divided despite its wealth

　　59 B The very rich are politically sensitive

　　60 C They want to gain support for global economics’ integration

　　61 D Foreign countries will place the same economic barriers in return