DÀNH CHO MỌI LỚP 6 ĐẾN 12
For a decade, that scientist has studied centenarians, looking for genes that contribute to longevity.
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The workforce is generally accepted to have the best conditions in Europe.
Around 150 B.C. the Greek astronomer Hipparchus developed a system to classify stars according to brightness.
As children we were very close, but as we grew up we just drifted apart.
During the five-decade history the Asian Games have been advancing in all aspects.
I prefer to talk to people face to face rather than to talk on the phone.
Many scientists agree that global warming poses great threats to all species on Earth.
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.
I used to meet him occasionally onFifth Avenue.
Biogas can be utilized for electricity production, cooking, space heating, water heating and process heating.