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今天（8月13日）是国际左撇子日（International Left-Handers Day），据最新研究表明，全球约9.94%的人为左撇子，也就是大概每10个人中约有1个人是左撇子。 听说，莫扎特、普希金、爱因斯坦、牛顿、毕加索、、丘吉尔、奥巴马、达芬奇......都是左撇子。 听说，LR也是，哈哈哈哈哈哈哈哈哈哈哈。 今天你练听力了吗？ 🤔️小作业： 1. What is the main finding of Clyde Francks' research on left-handedness? A) Left-handedness is primarily caused by genetic factors. B) Left-handedness is likely due to random fluctuations of chemicals in the developing brain. C) Left-handedness is determined by a single gene in most cases. D) Left-handedness is strongly hereditary and can be predicted through family history. 2. How did Francks and his team approach their study differently from previous studies? A) They focused on common genetic variants affecting left-handedness. B) They studied twins to meas
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