单项选择题

In the first sentence of the last paragraph, "it was" means

A．"it was true."
B．"it was too good to be true."
C．"it was a miracle drug."
D．"it was good."
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单项选择题
According to the New York Times' report, a combination of two new drugs could
A．reduce the size of all tumors.
B．prevent breast cancer,
C．cure various diseases.
D．prevent uterine cancer.
单项选择题
The history of cancer research has shown that
A．miracle cancer drugs often turn up unexpectedly.
B．the mass media can wore wonders.
C．curing cancers in mice is much easier than in humans.
D．animals and humans are similar in behaviour.
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