单项选择题

It can be inferred from the latest survey that

A．hospital teaching across the country is similar.
B．each hospital has at least one part-time teacher.
C．all hospitals surveyed offer education to children.
D．only one-fourth of the hospitals have full-time teachers.

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单项选择题

The author points out at the beginning that

A．every child in hospital receives some teaching.
B．not enough is known about hospital teaching.
C．hospital teaching is of poor quality.
D．the special children's hospitals are worst off.

单项选择题

The police let him go, because they didn't find him guilty__________the murder.

A．of
B．in
C．over
D．on