DÀNH CHO MỌI LỚP 6 ĐẾN 12
Accuracy, cleanliness, and orderliness are required.
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Biogas can be utilized for electricity production, cooking, space heating, water heating and process heating.
During the five-decade history the Asian Games have been advancing in all aspects.
Many scientists agree that global warming poses great threats to all species on Earth.
The workforce is generally accepted to have the best conditions in Europe.
I prefer to talk to people face to face rather than to talk on the phone.
As children we were very close, but as we grew up we just drifted apart.
She decided to remain celibate and devote her life to helping the homeless and orphans.
Population growth rates vary among regions and even among countries within the same region.
Around 150 B.C. the Greek astronomer Hipparchus developed a system to classify stars according to brightness.
I used to meet him occasionally onFifth Avenue.