题目内容

请选择（10）处的最佳答案．

A. speech
B. tongue
C. dialect
D. language

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Processing sewage creates large quantities of______

A. water
B. electricity
C. gas
D. oil

According to the Kobata method,______of activated carbon can be obtained from used tires.

A. 1.5 kilograms
B. 7 kilograms
C. more than one fifth
D. 93 percent

When Washington D．C．was burned in 1814, Dollety Madison rescued many official papers from the White House.

A. stole
B. filed
C. hid
D. saved

Netscape is an influential web site which is visited by millions of people.

A. Right
B. Wrong
C. Not mentioned