单项选择题

Yahoo, eBay, Amazon, CNN, Buy, eTrade and zNet are （）

A．stores on the web
B．large commercial web sites
C．small commercial web sites
D．public government web sites

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热门试题

单项选择题

The AIDS drugs that Lee Wildes uses are （）

A．stolen from hospitals
B．given to him by AIDS patients who have extra
C．leftovers from hospitals, clinics, or people
D．given to him by drug companies

单项选择题

Five years ago, when Lee Wildes visited Africa, （）

A．he saw very few people with AIDS
B．he saw plenty of drugs to help people with AIDS
C．he saw doctors with plenty of medicine
D．he saw that there was an AIDS epidemic