单项选择题

The environment surrounding health care has been greatly altered by the______medical technologies.

A．approaching
B．impracticable
C．sophisticated
D．transient
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单项选择题
By sheer______, I met the old classmate we had been discussing yesterday.
A．coincidence
B．coherence
C．collaboration
D．collocation
单项选择题
She is admitted to the hospital with complaints of upper abdominal pain and______for fatty foods.
A．preference
B．persistence
C．intolerance
D．appetence
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