题目

In his lowest days when few people bought his records, Taiwan singer Steve Chou lived alone in Canada and did little. One day, he passed by a local CD store and heard a song that greatly attracted him. “My heart tells me that music is the thing I truly want to do, not for fame or money,” Chou said. That’s how we luckily have such a music genius, who has since then composed lots of hits for the pop music charts (排行榜).  “Sometimes we need to get close to nature to look deeply into our souls and see what we really want to follow,” he said. Recently he has made public hi 噬菌体是一类细菌病毒。下列关于噬菌体侵染细菌实验的相关叙述中不正确的是： [　　] A．该实验证明DNA是噬菌体的遗传物质 B．侵染过程的“合成”阶段，噬菌体DNA作为模板，而原料、ATP、酶、场所等条件均由细菌提供 C．为确认何种物质注入细菌体内，可用32P、35S共同标记噬菌体的DNA和蛋白质，而对照组不作任何标记 D．若用32P对噬菌体双链DNA标记，再转入普通培养基中让其连续复制n次，则含32P的DNA应占子代DNA总数的1／2n－1