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【简答题】
为了研究遗传信息的传递途径，科学家做了如下实验。 (1)实验中应用了_________法和___________法研究遗传信息的传递途径。 (2)实验设计的关键思路是___________，实验中的关键技术是____________。 (3)从实验可以看出RNA的合成发生在细胞的________________部位。 (4)细胞核交换后，B组变形虫的细胞质出现有标记的RNA分子的原因是________________。 (5)通过实验说明RNA是遗传信息传递的________。 (6)请你模仿艾弗里的实验用加减物质方法，利用变形虫(实验材料)酵母菌(提取出所需要的化合物)设计实验证明蛋白质合成直接受RNA的影响。(只写实验没计思路不要求实验操作过程，关于蛋白质的鉴定及数量测定的方法及步骤不写)
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【简答题】Health education encourages behavior__________
【单选题】Continuing MedicaJ Education There is increasing recognition of the need for health workers to continue their education through-out their careers. Not only do health workers themselves wish to improve...
A.
Right
B.
Wrong
C.
Not mentioned
【单选题】The underlined sentence “ The health and education... ” means that ______.
A.
most of the taxi drivers have little time to take care of their children
B.
Chinese parents care about the health and education of their children most
C.
lots of children of taxi drivers are in poor condition of health and education
【简答题】Health education are different from__________
【简答题】特殊健康教育(special health education)
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