单项选择题

The traveler brought back some ______ of the rocks from the mountains.

A．samples
B．specimens
C．selections
D．examples
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单项选择题
A．especiallyB．generallyC．definitelyD．certainly
A．especially
B．generally
C．definitely
D．certainly
单项选择题
If you take (a ten—or fifteen—minutes) vacation (into) the realm of imagination (each day), you may (add much to) the excitement and enjoyment of your life.
A．a ten—or fifteen—minutes
B．into
C．each day
D．add much to
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