单项选择题

The best title for this passage would be ______.

A.The Atmosphere and Our Environment
B.Research on Radiation
C.Effects of Space Radiation
D.Importance of Protection Against Radiation
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单项选择题
What is the main idea of this passage
A.Plugging poor countries into the Internet will help them to become rich rapidly.
B.Poor countries should be given more basic devices other than advanced ones.
C.Rich countries should help poor ones becoming rich.
D.People in poor countries cannot afford devices such as computer.
单项选择题
We can infer from the 2nd paragraph that:
A.people in poor countries cannot use computer because of illiteracy.
B.poor people cannot use computers.
C.there would be no magic to cause a computer to appear in every household on earth.
D.people in poor countries need more basic living conditions than computers.
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