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【简答题】
基因型为AABB和aabb的两亲本杂交，F1自交，F2群体的表现型如下：A_B_660株、A_bb91株、AAB_89株、aabb160株。问：A、B基因是否连锁？为什么？如果连锁，交换值是多少？
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A.
with
B.
have
【简答题】复数的表示方法有四种,分别是代数式、指数式、三角函数式和()式。
【单选题】According to paragraph 7，what is the result of the test on Choe's hypothesis?
A.
It shows that his hypothesis is wrong．
B.
It proves that his hypothesis is convincing．
C.
It suggests that his hypothesis needs revising．
D.
Not enough evidence has been found to support his hypothesis．
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A.
正确
B.
错误
【单选题】You are the administrator of some of TestKing's file servers. Peter is hired as an intern in the human resources department. Peter needs access to some HR files. He also needs to be able to read the f...
A.
Set the hidden and system attributes on Handbook.Doc.
B.
Disable permissions inheritance on Handbook.doc.
C.
Assign Peter the Allow-Read permission for Handbook.doc.
D.
Assign Peter the Deny-Write NTFS permission for Handbook.doc.
【简答题】Can I borrow your power supply? My ________ is almost dead. 2 .My computer keeps crashing. I think it needs more ________. 3 I have almost run out of space on my ________. l can't load any more photos...
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