Rachel Carson (1907-1964)was a pioneer of the world's environmental movement through her writing about the protection of the natural world.Her 1962 book Silent Spring made her well known by many people.It describes the harmful changes in the environment of using toxic (有害的) chemicals on ...
Rachel Carson (1907-1964 ) was a pioneer of the world's environmental movement through her writing about the protection of the natural world.Her 1962 book Silent Spring made her well known by many people. It describes the harmful changes in the environment of using toxic chemicals on farmland....
Rachel Carson(1907-1964) was a pioneer of the world’s environmental movement through her writing about the protection of the natural world. Her 1962 book Silent Spring made her well known by many people. It describes the harmful changes in the environment of using toxic(有害的) chemicals on...
Carson's book Silent Spring completely changed the way America thought about nature.It painted a bleak(荒凉的) future for the whole natural world.It led to a nationwide ban(禁止)on the use of a deadly chemical called DDT,and other toxic pesticides (农药)that farmers used for their crops....
Specializing in R&D, manufacturing, sales and service of intelligent equipment in the solar industry. SC Solar not only provides clients with turnkey solutions for solar module manufacturing, meeting their diversified requirements such as conventional gl
Qian Xuesen,___,was the pioneer of China's Astronomy industry.钱学森于1911年12月11日出生于上海,他是中国航天事业的先驱。2. Bai Yun,___, graduated from Harvard University at the age of 24.白云,一位27岁的女士,在24岁时毕业于哈佛大学。3. ___, he went to Americ a for further education ...
In December of the same year, Xizang's first rural Party branch was established there. "Life has undergone earth-shaking changes, which is a world away from the past," said Sonam Dondrup, whose family was given 20 mu (about 1.3 hectares) of land, a donkey and a yak following the ...
A video clip of China’s “father of hybridrice,” Yuan Longping, speaking English has become a sensation 轰动on Weibo,China’s version of Twitter. The 87-year-old spoke at the 9th Shandong high-level talents forum in Qingdao....
China has hosted the 4th United Nations World Data Forum in Hangzhou, the capital of east China's Zhejiang Province. Data experts from more than 100 countries discussed various topics, including data innovation, data value, public transparency, and data ecosystems. ...
(2)___he had struggled for decades.Dr Yuan Longping developed super hybrid rice.In 1974,he became(3)___first agricultural pioneer in the world(4)___(grow)rice with a high output.Now more than 60% of the rice(5)___(produce) in China each year is from this hybrid strain. Dr ...