单项选择题

"A buyer will get something for nothing "in Paragraph 2 most probably means that _____________.

A．a buyer will not get what he pays for
B．a buyer will get more than what he pays for
C．a buyer will get something useful free of charge
D．a buyer will get more but pay less
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单项选择题
Which of the following sentences is NOT true according to the passage
A．In fact glasses or dishes used for packaging do not cost money at all.
B．"Family Size" printed on the package means that it is rather economic.
C．To a child, even to an adult, the form is far more important than the content.
D．Words and pictures written on the package are thought to be an advertisement.
单项选择题
The control of artificial devices is improving because _____________.
A．video signals can be transformed into light patterns
B．bionic machines have existed for centuries
C．artificial devices such as arms, legs and eyes require better control than bionic machines
D．science has made great advances in electronics
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