题目

Cathy is a tetraplegic. She has not been able to move her arms, legs or speak since suffering a stroke（中风）nearly fifteen years ago. Recently, she learned how to control a robotic arm using her thoughts. She now can use brain activity to serve herself a drink. The American woman is one of two people who took part in a research project known as BrainGate2. The researchers have spent years studying how to help people who are disabled regain movement in their arms and legs. John Donoghue is a neuroscientist with Brown University and also was part of the project. He said, “People l如图表示人体细胞中各种化合物或主要元素占细胞鲜重的含量，以下按①②③④顺序排列正确的是（ ） A.蛋白质、水、脂质、糖类，C，O，H，NB.蛋白质、水、脂质、糖类，N，H，O，CC.水、蛋白质、脂质、糖类，H，O，N，CD.水、蛋白质、糖类、脂质，N，H，C，O