单项选择题

Questions 6 and 7 are based on the following news. The rescue operation has stopped temporarily because

A．the weather was bad.
B．there was risk of another blast.
C．there was another blast.
D．no survivor has been foun
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单项选择题
Researchers say light exercise may help to
A．reduce the risk of difficult labor.
B．improve the intelligence of the baby.
C．control weight in the womb.
D．have larger babies.
单项选择题
Question 8 is based on the following news.
A．His family was too poor to send him to school.
B．He strongly advocated the new law.
C．He was an economist as well as a politician.
D．He attributed his success to education.
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