题目

关于“噬菌体侵染细菌”实验的叙述，正确的是A.含35S的噬菌体和含32P的噬菌体分别是利用含有35S和32P的培养基培养的B.噬菌体在大肠杆菌中以大肠杆菌的DNA为模板合成子代噬菌体的DNAC.噬菌体侵染细菌实验中搅拌和离心是为了把DNA和蛋白质分开D.噬菌体侵染细菌实验比艾弗里的肺炎双球菌转化实验更具说服力9. The way the professor introduced to the students was easy to understand.   A. in which   B. in that   C. that   D. of which