单项选择题

His latest medical study suggests that high blood pressure_______with unhealthy life- styles.

A．has something to do
B．have something to do
C．had something to do
D．is having something to do
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单项选择题
The_______of living has kept rising in recent years.
A．expense
B．cost
C．price
D．bill
单项选择题
Many elderly people are suffering from the_______disease, rheumatism, as a consequence of the high humidity there.
A．acute
B．cute
C．slow
D．chronic
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