单选题：Before you decide on a vocation, it might be a good idea to

题目内容：

Before you decide on a vocation, it might be a good idea to consult a few good friends. A．career
B．holiday
C．plan
D．research

参考答案：

答案解析：

It is postulated that population trends have an effect on e

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

分类：综合类题型：单选题

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The police will need to keep a wary eye on this area of town.A．naked B．cautious

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It was a magic night until the spell was broken.A．time B．charm C．space D．opportu

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Afterwards there was just a feeling of let-down.A．excitement B．anger C．calm D．di

分类：综合类题型：单选题