单项选择题

The main purpose of the passage is to ______.

A．predict the future of medical care
B．describe a health check-up device
C．show the superior health care system of Sweden
D．warn about the dangers of undetected diseases

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单项选择题

The prediction process that the Jungners use is essentially ______.

A．biological
B．physiological
C．chemical
D．biophysical

单项选择题

The results of the use of the Jungner apparatus indicate that ______.

A．people may become aware of a previously undetected ailment
B．blood diseases can be cured very easily
C．diabetes does not respond to the apparatus
D．practically all Swedish physicians welcomed the invention