单项选择题

The author regards the notion that heat pumps have a genuine drawback as a ________.

A．cause for regret
B．sign of premature defeatism
C．welcome challenge
D．focus for an educational campaign
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单项选择题
In Para. 2, the term premium means ________.
A．the cost of the damage
B．a sum of money paid regularly to an insurance company
C．proportion of the risk involved
D．a large fund of money
单项选择题
The purpose of this passage is ________.
A．to get you familiar with insurance business
B．to advise you to insure your properties
C．to tell you how to get compensation from an insurance company
D．to teach you how to sign an insurance contract
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