水准仪测高程:How many people have died of AIDS would wide?

How many people have died of AIDS would wide? how many people died in iraq? 2 pax = how many people? 2 pax = how many people how many people enjoy their job how many people live in Japan? How many people work in the library? how many people will be with you ?还是，how many people will with you? How many hair do i have ? How many sides does a circle have