单项选择题

The _________ of my paper on animal communication includes a book on whale songs.

A．biography
B．preface
C．introduction
D．bibliography
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单项选择题
The girl under the tree is _________ my sister.
A．no one than
B．no other than
C．no one that
D．none other than
单项选择题
Many experts _________ a low-protein, high-carbonhydrate diet.
A．prompt
B．advocate
C．inherent
D．claim
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