单项选择题

Passage One

A. There are too many complaints from net users.
B. Hackers’ attack of MySpace cannot be forbidden.
C. Parents cannot help checking children’s information.
D. It is easy for trouble-makers to do harm to children.
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单项选择题
A. The building method the builders use to save energy. B. The limit of the flow of air between inside and outside. C. The use of man-made building materials. D. The limit of air-flow and the man-made materials.
A. The building method the builders use to save energy.
B. The limit of the flow of air between inside and outside.
C. The use of man-made building materials.
D. The limit of air-flow and the man-made materials.
单项选择题
A. It helps improve the physical health.B. It is good for a sound sleep.C. It helps develop mental toughness.D. It helps lose weight.

A. It helps improve the physical health.
B. It is good for a sound sleep.
C. It helps develop mental toughness.
D. It helps lose weight.
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