单项选择题

What is the librarian’s first suggestion

A．To find articles on ecology.
B．To look into some of the specilialized indexes.
C．To look for articles published in 297 periodicals.
D．To look for articles published from November 10th, 1990 to December 28th,2000.
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单项选择题
About Britain's social welfare, which is the correct discription in the following statements
A．From - cradle - to - grave.
B．British disease.
C．The Great Depression.
D．The patient of Europe.
单项选择题
Which of the following sounds is a voiceless bilabial stop
A．[p].
B．[m].
C．[b].
D．[t].
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