It is postulated that population trends have an effect on economic fluctuations.

A．challenged

B．assumed

C．deducted

D．decreed

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参考答案

句意：人们认为人口动态对经济波动有一定影响。本题是对动词的考查。题干划线词postulated意为“猜测，假设”，challenged意为“挑战”，assume意为“猜测，假象”，deducted意为“推测”， decreed意为“颁布法令”，故选B。

1 She seemed to have detected some anger in his voice.

A．noticed

B．heard

C．realized

D．got

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2 The new style of shoes appeals to those students.

A．arises

B．absorbs

C．attracts

D．accepts

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3 It remains a puzzle about why our outermost planet exists.

A．problem

B．mystery

C．question

D．point

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