Every unit in this book consists of a dialogue with comprehension questions and vocabulary and pronunciation exercises, as well as a section that focuses on grammar.

这册书中的每一个单元的对话都涉及到了阅读理解、单词、和音标的练习，同时还是包括了语法。

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The hydraulic turbine unit frequently operates under the low water head, exists the questions of unstable operation and cavitation in Mania hydropower station.

满拉水电站水比机组经常处在低负荷下运行，存在着局部空蚀破坏和运行不稳定两大问题。

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The paper puts forward the questions of different duty for the Certified Public Accountant and unit management authorities being audited to the action of going against ordinance.

本文阐述了违反法规行为的含义以及违反法规行为同错误与舞弊之间的关系，强调指出了注册会计师和被审计单位管理当局对违反法规行为的不同责任问题。

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At his regular briefing with reporters Wednesday, National Incident Commander Thad Allen said additional questions about the unit would now have to go to the U.S. Justice Department and the Joint Investigation Team.

CNN: Public may not see failed blowout preventer from BP oil well

There may be one or two questions about when that unit might be going home.

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Allen said the ship will carry the unit to shore, but that the timetable and other questions will no longer be something he can address as part of the disaster operations that he heads.

CNN: Public may not see failed blowout preventer from BP oil well