单项选择题

Researchers have discovered that ______ with animals in an active way may lower a person’s blood pressure.

A．merging
B．migrating
C．interacting
D．integrating
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单项选择题
The country was an island that enjoyed civilized living for a thousand years or more with little______ from the outside world.
A．discrimination
B．irritation
C．disturbance
D．irregularity
单项选择题
Picasso gained popularity in the mid-20th century, which was ______ of a new attitude towards modem art.
A．exclusive
B．expressive
C．informative
D．indicative
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