单项选择题

The passage is mainly concerned with ______.

A．supporting a position
B．refuting some arguments
C．describing a case
D．presenting a new perspective
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单项选择题
In the author's opinion, why do more people in Britain oppose animal experiments
A．Because they are kinder than those in the United States.
B．Because they don't know the benefits resulting from animal tests.
C．Because most of the medicines don't need animal experiments to work well.
D．Because some scientists use rare species for their medical experimentation.
单项选择题
What is the author's attitude towards animal research
A．Negative.
B．Questioning.
C．Neutral.
D．Positiv
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