题目

阅读短文，并按要求后完成各小题。The Silk Road is the name of different roads that long ago connected Europe, Africa and Asia. People reached these different places along these roads. Scientists believe people began to travel the Silk Road about 3000 years ago. By the time the Chinese silk trade became important in the world.The Silk Road covered almost 6500 kilometres. It spread from Rome to China, which is from the West to the Far East.Traders travelling along the Silk Road carried silk, of course. They also carried and traded spices (香料), cloth, valuable stones and gold.A下列关于人类探索遗传奥秘历程中的科学实验方法及技术的叙述,错误的是 A.孟德尔在研究豌豆杂交实验时,运用了假说—演绎法 B.萨顿根据基因和染色体的行为存在平行关系,类比推理出基因位于染色体上 C.格里菲思利用肺炎双球菌研究遗传物质时,运用了放射性同位素标记法 D.沃森和克里克研究 DNA 分子结构时,运用了建构物理模型的方法