题目

如图为原核细胞中转录、翻译的示意图。据图判断，有利于提高该过程效率的是 ①转录尚未结束，翻译已经开始 ②多个核糖体上共同完成一条多肽的合成 ③多条多肽链可以同时进行合成④有些氨基酸具有多个密码子 A．①②             B．①③          C．②④             D．③④ After a heated discussion , an agreement _____ and the meeting ________ .A．reached , came to an endB．was reached , put an end to C．arrived at , bring to an endD．was arrived at , came to an end