填空题

【参考答案】

This ∧ confirmed→was
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填空题
reasonable→unreasonable
单项选择题
It can he inferred from the first paragraph that the author ______.
A．is in favor of stem-cell research.
B．welcomes the research slowdown.
C．takes a neutral stand on the research.
D．thinks it essential to speed up the research.
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