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【简答题】
据考证，人类和类人猿的共同祖先是______．
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举一反三
【单选题】分子筛(凝胶层析)分离蛋白质的依据是
A.
蛋白质紫外吸收的最大波长是280nm
B.
蛋白质是两性电解质
C.
蛋白质分子大小不同
D.
蛋白质多肽链中氨基酸是借肽键相连
E.
蛋白质溶液为亲水胶体
【单选题】Why are we like Alice in Wonderland when we read a book?
A.
Because, like Alice, we often have accidents.
B.
Because reading makes us feel young again.
C.
Because reading opens the door to new experiences.
D.
Because books lead us into a dream world.
【单选题】分子筛(凝胶层析)分离蛋白质的依据是
A.
蛋白质紫外吸收的最大波长281nm
B.
蛋白质是两性电解质
C.
蛋白质分子大小不同
D.
蛋白质多肽链中氨基酸是借肽键相连
E.
蛋白质溶液为亲水胶体
【单选题】Why are we like Alice in wonderland when we read a book?
A.
Because,like Alice, we often have accidents.
B.
Because reading makes us feel young again.
C.
Because reading opens the door to new experiences.
D.
Because books lead us into a dream world.
【单选题】Why are we like Alice in wonderland when we read a book?
A.
Because, like Alice, we often have accident.
B.
Because reading makes us feel young again.
C.
Because reading opens the door to new experiences.
D.
Because books lead us into a dream world.
【单选题】分子筛(凝胶层析)分离蛋白质的依据是
A.
蛋白质紫外吸收的最大波长280nm
B.
蛋白质是两性电解质
C.
蛋白质分子大小不同
D.
蛋白质多肽链中氨基酸是借肽键相连
E.
蛋白质溶液为亲水胶体
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