单项选择题
A．a great effect on everyone’s intelligence B．same effect on most persons’ intelligence C．some effect on a few persons’ intelligence D．no effect on most persons’ intelligence
A．he B．they C．someone D．nobody
A．One of the biggest barriers to Internet use is getting wires into rural areas. B．The wireless computers will be cheaper. C．People in rural areas don’t have anything else to do. D．People in rural areas already have wireless boxes on their roofs.