单项选择题

Who was the recent survey carried out by

A．A few public-school kids.
B．A few private-school kids.
C．A few public-school teachers.
D．A married coupl
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单项选择题
What is the best title for this passage
A．Development of cancer research.
B．Childhood cancer and pollution.
C．Engine exhausts.
D．Pre-natal car
单项选择题
How many new cases of childhood diagnosed in the UK each year
A．12.
B．300.
C．22,500.
D．1,500.
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