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港股主要指数10日集体高开，热门科技股多数反弹，腾讯涨0.33%，阿里涨0.38%，美团涨0.68%，快手涨0.29%，哔哩哔哩跌1.06%，百度跌0.76%。在线教育股走强，新东方涨近9%，新东方在线涨近3%，思考乐教育涨1.8%。
Message : Required fields On the morning of April 16, 2021, the Shandong Science and Technology Innovation Conference was held in Jinan. Tan Xuguang, Chairman of Shandong Heavy Industry Group, Chairman of Weichai Group, and Director of the State Key Laboratory of Engine Reliability, was awarded the 2020 Shandong Top Science and Technology Award. Wang Zhigang, Minister of Science and Technology Ministry, presented the award to Tan Xuguang. At the meeting, Tan Xuguang made a speech on behalf of scientific and technological workers. Tan Xuguang has been engaged in key...
Many plants produce chemicals to protect themselves from being eaten. But how do they protect themselves from these chemicals? To understand this, researchers studied a chemical (diterpene glycosides) produced by wild tobacco plants. They found that these substances were stored in a non-toxic form inside the plant and when the insect feeds on it, the non-toxic molecule cleaves off and the chemical turns toxic. Garnet sand beach on Goodenough Island, Milne Bay Province, Papua New Guinea. (Photo credit: Professor Paul Fitzgerald) History written in sands