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【判断题】
构成抗原免疫原性的首要条件是异物性。
A.
正确
B.
错误
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参考答案:
举一反三
【单选题】基因分离定律的实质是
A.
等位基因随同源染色体分开而分离
B.
子一代性状分离比例为3∶1
C.
子一代出现性状分离
D.
测交后代性状分离比为3∶1
【单选题】What do we mean by being 'talented' or 'gifted'? The most obvious way is to look at the work someone does and if they are capable of significant success, label them as talented. The purely quantitativ...
A.
Y
B.
N
C.
NG
【单选题】The main idea of the passage is______.
A.
that gifted children were most likely to become bright grown-ups
B.
that bright children were unlikely to be physically and mentally healthy
C.
how many gifted children turned successful when they grew up
D.
that when the bright children grew up, they would become ordinary
【简答题】我国人口老龄化的主要特点有哪些
【单选题】The most gifted of the “university wits” was ____.
A.
Lyly
B.
Peele
C.
Greene
D.
Marlowe
【单选题】From the passage, we can conclude that ______.
A.
most of the gifted children became white collars
B.
half of the gifted followed up graduated from all colleges
C.
each of the talented published at least one article
D.
bright men got higher income than bright women
【单选题】分离定律的实质是
A.
子二代出现性状分离
B.
子二代性状分离比为3:1
C.
子二代性状分离比为1:1
D.
测交后代性状分离比1:1
E.
等位基因随同源染色体分离而分开
【单选题】基因分离定律的实质是 [     ]
A.
F 2 出现性状分离
B.
F 2 分离比3:1
C.
F 1 产生配子时等位基因分离
D.
F 1 产生的配子比例相同
【简答题】Human beings are the most intelt  of all animals because we are gifted with the ability to think and reason logcally.  Scientists and even common people with special intelce have made a loto...
【单选题】基因分离定律的实质是 [     ]
A.
子二代出现性状分离
B.
子二代性状的分离比为3:1
C.
测交后代性状的分离比为1:1
D.
等位基因随着同源染色体的分开而分离
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