单项选择题

Some scientists are dubious of the claim mat organisms______with age as an inevitable outcome of living.

A．depress
B．default
C．degrade
D．deteriorate
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单项选择题
Having a(n)______attitude towards people with different ideas is an indication that one has been well educated.
A．tolerant
B．analytical
C．bearable
D．elastic
单项选择题
Some British universities are state-supported, others are privately______and still others are supported by religious origination.
A．ensured
B．attributed
C．authorized
D．endowed
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