单项选择题


A．medicine
B．drug
C．drugs
D．herbs
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单项选择题
A．AB．TheC．AnotherD．This
A．A
B．The
C．Another
D．This
单项选择题
A．and tooB．as well asC．and alsoD．but also
A．and too
B．as well as
C．and also
D．but also
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