单项选择题

A videodisc courseware is beneficial to those who have study difficulties because _______.

A．its fancy design is very attractive
B．it allows the user to go back to where he wants to restudy
C．the content of it is healthy and promising
D．it is developed by university professors

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单项选择题

The word impairment ( Line 2, Para. 1 ) probably means _______.[A] habit [C] misconception[B] disability [D] belief

A．The word "impairment" ( Line 2, Para. 1 ) probably means _______.
B．habit
C．disability
D．misconception
E．belief

单项选择题

According to Professor Healey, we may infer that mentally retarded children perhaps _______.

A．need graphic representations in order to understand higher-order language concepts
B．are good at studying English idioms but often fail to grasp higher-order language concepts
C．are not very patient with videodisc which helps them to understand the world concepts
D．tend to be deaf as well and have difficulty learning the simple concept "before and after"

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