单项选择题


A．beings
B．mind
C．heart
D．memory
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单项选择题
In paragraph 2, gimmicks means ______.
A．types of machine
B．pieces of equipment
C．electronic devices
D．technical innovations
单项选择题
The purpose of the last paragraph is to tell the readers ______.
A．the amount of money being spent on injuries every year
B．the importance of General Motors' laboratory research
C．how transport injuries affect people's lives
D．the economic problem scientists and researchers are faced with
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