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【简答题】
某一基因座，A基因和a基因总计10000个，其中A基因9952个，a基因48个。计算 A基因频率和A基因频率。
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【单选题】The author says that professional linguists recognize that ______.
A.
western languages are superior to Eastern languages
B.
all languages came from grunts and groans
C.
the hierarchy of languages is difficult to understand
D.
there is no hierarchy of languages
【单选题】The author says that cooked rattlesnake is______.
A.
tasty
B.
bitter
C.
healthful
D.
unappetizing
【单选题】The author says that cooked rattlesnake is ______.
A.
sickening
B.
healthful
C.
tasty
D.
unappetizing
【简答题】The author says he is not strong—minded enough to ignore the telephone because ．
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