单项选择题

The atmosphere is as much a part of the earth as ______ its soil and the water of its lakes, rivers and oceans.

A．are
B．is
C．do
D．has
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单项选择题
I ______ with thanks the help of my colleagues in the preparation of this new column.
A．express
B．confess
C．verify
D．acknowledge
单项选择题
A good teacher should not confront his pupils ______ too much information in one lesson.
A．by
B．with
C．from
D．about
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