1928年，英国细菌学家格瑞菲斯进行的肺炎球菌转化实验，其在生命科学分子时代的意义是（） ["明确染色体是基因的载体","确定DNA是遗传物质","分子遗传学的确立","确定DNA是遗传物质，标志着分子生物学的形成"]
法定证据制度是对神示证据制度的（），是历史上的一大进步。 ["肯定","否定","继承","修正"]
1902年（）在《论中国学术思想变迁之大势》中将“国学”与“新学”、“外学”相对举，使之成为中国传统学术的代名词。 ["胡适","章太炎","梁启超","章学诚"]
催化燃烧式可燃气体探测器此类探测器是在白金电阻的表面制备耐高温的催化剂层，在一定的温度下，可然性气体在其表面（）燃烧使白金电阻温度升高，电阻变化，变化值是可燃性气体浓度的函数。 ["催化","燃烧","催化燃烧","凝结"]
Which two demonstrate encapsulation of data？ （） [" Member data have no access modifiers."," Member data can be modified directly."," The access modifier for methods is protected."," The access modifier to member data is private."," Methods provide for access and modification of data."]
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