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【单选题】
现有一个体基因型是BbDd,如用回交的方法,连续回交3代,其回交后代的纯合率为:A.
76.56%
B.
38.23%
C.
17.1%
D.
23.44%
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【单选题】Until the day she died, the old lady who lives by the university was working part time at the language lab.(改错题)
A.
who
B.
lives
C.
by the
D.
part time
【单选题】The old lady lives alone; some of her nephews_______ to see her occasionally. prefix="o" ns="urn:schemas-microsoft-com:office:office" ?xml:namespace> A. drop out B.drop by C. drop off D. drop on
A.
drop out
B.
drop by
C.
drop off
D.
drop on
【简答题】完成下列问题 主题:中国股权分置改革(自学课本 P37-P38) 股权分置:是指中国 A股市场上的上市公司股份按能否在证券交易所上市交易,被区分为“非流通股”和“流通股”。 股改:是股权分置改革的简称。是指通过非流通股股东和流通股股东之间的利益平衡协商机制,消除 A股市场股份转让制度性差异的过程,是为非流通股可上市交易作出制度的安排。 股权分置的案例资料: 案例一:三一重工的股权分置改革 2005...
【单选题】The old lady lives alone; some of his nephews ___________ to see her occasionally.
A.
drop by
B.
visit
C.
pay a visit
D.
drop in
【单选题】The old lady doesn’t have any children. She lives _________ in a _________ house.
A.
alone; alone
B.
lonely; lonely
C.
alone; lonely
D.
lonely; alone
【单选题】The old lady lives alone; some of his nephews __________ to see her occasionally.
A.
drop in
B.
visit
C.
pay a visit
D.
drop by
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