单选题：The main purpose of the research was to find out how exposur

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题目内容：

The main purpose of the research was to find out how exposure to PAHs played a role in harming the subjects' physical health. A．Right
B．Wrong
C．Not mentioned

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They’re (petitioning) for better facilities for the disabled

They’re (petitioning) for better facilities for the disabled on public transport

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请在【答题】菜单下选择【进入考生文件夹】命令，并按照题目要求完成下面的操作。注意：以下的文件必须都保存在考生文件夹下。财务部助理小王需要协助公司管理层制作本财年

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Charges for local telephone calls are outrageous.

Charges for local telephone calls are outrageous.A．unheard of B．unacceptable C．u

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Our arrangements were thrown into complete turmoil.

Our arrangements were thrown into complete turmoil.A．failure B．doubt C．confusion

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The energy companies launched urgent studies of the Arctic e

The energy companies launched urgent studies of the Arctic environment.A．made B．

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