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linhngupro1601
2 năm trước
cho tam giac MNP vuong tai M co MN=9cm NP=15cm a tinh do dai canh MP va so sanh cac goc cua tam giac MNP b tren tia doi cua tia MN lay diem D sao choM la trung diem ND chung minh tam giac PND can c goi K la trung diem cua NP duong thang DK cat canh MP tai E tinh do dai PE d duong trung truccua canh MP cat duong thang DP tai S chung minh 3 diem N,E,S thang hang ve hinh nua nha
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Rice is a kind of grass. There are more than seven kinds of rice. Most kinds are water plants. Farmers grow rice in many countries, even in the southern part of the United States and Eastern Australia. No one really knows where rice came from. Some scientists think it started to grow in two places. They think that one kind of rice grew in Southern Asia thousands of years ago. Someone in China wrote about it almost five thousand years ago. Another kind probably grew in West Africa. Other scientists think rice came from India, and Indian travelers took it to other parts of the world. 19. There are only three kinds of rice. ______ 20. They grew rice in Southern Asia hundreds of years ago. ______ 21. Nobody knows where rice came from. ______ 22. According to the passage, Indian travelers took maize to other parts of the world. ______ Read the passage again and choose the best answer ( A, B, C or D) (0.5pt) 23. What’s the passage mainly about? A. Kinds of rice and their origins. B. Growing rice in the USA and Eastern Australia C. Growing rice in Southern Asia. D. Growing rice in India. 24. What can be inferred from the passage? A. Rice is grown everywhere. B. Some kinds of rice are water plants. C. There are seven kinds of rice. D. Rice is grown in Southern Asia many centuries ago

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