题目

       Two brothers, Herbert and James, lived with their mother and a cat named Edgar. James was particularly devoted to the cat, and when he had to leave town for several days, he left Herbert careful instructions about the pet’s care. At the end of his first day away, James telephoned his brother, “How is Edgar?”        “Edgar is dead.” Herbert answered. There was a pause. Then James said, “Herbert, you’re insensitive (漠然的). You know how close I was to Edgar. You should have broken the news to me slowly. When I asked about Edgar tonight, you should ha下图为细胞中合成蛋白质的示意图，下列相关说法正确的是A.该过程不需要tRNA的参与B.该过程的模板是mRNA，原料是氨基酸C.②③④⑤的最终结构各不相同D.合成①的场所在细胞质，⑥的合成与核仁有关