单项选择题

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A.Sick.
B.Fine.
C.Better.
D.Tired.
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单项选择题
The reason lying behind President Bush’’s placing limits on stem cell research is that________.
A.his administration is financially pinched
B.he did not want to offend its opponents
C.it amounts to a contempt for human life
D.it did not promise any therapeutic value
单项选择题
By comparing past problems with present ones, the author draws attention to _________.
A.the significance of this crisis
B.the inadequacy of governments
C.the similarity of the past to the present
D.the hopelessness of the situation
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