单项选择题

The _______mortality rate had gone up greatly during the past 10 years.

A．infant
B．maternal
C．male
D．middle-aged
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单项选择题
The educational system in the United States is based on________.
A．the Federal Government
B．the individual school
C．the respective state
D．the local communities
单项选择题
From the way she speaks to the man, the woman seems________.
A．to be in a hurry to leave
B．to be curious about him
C．to be happy to assist him
D．to be unfamiliar with the town
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