单项选择题

About ________cars and dogs are destroyed each year.

A．6 million
B．15 million
C．30 million
D．1 million
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问答题
THE BLIND ATTENDING UNIVERSITYThe World Health Organization says almost forty million people around the world are blind. There are about one million blind people in the United States. The largest and most influential organization of blind people in this country is the National Federation of the Blind. Officials say the nation does not have any colleges or universities that serve only blind students. They say the reason for this is that blind people must learn to live among people who can see. American colleges and universities do accept blind and visually impaired students. And they provide services to help these students succeed. For example, colleges find people who write down what the professors say in class. And they provide technology that can help blind students with their work. However, experts say colleges can best help blind students by making it clear that the students should learn to help themselves.
单项选择题
What is the main purpose of the research
A．To make preparations for a new publication.
B．To learn how couples spend their weekends.
C．To know how housework is shared.
D．To investigate what people do at the weekend.
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