In what kind of areas do researchers find high caffeine levels？
Areas near wastewater treatment plant.
B. Areas that are densely populated.
C. Areas where rivers enter the ocean.
D. Areas far from large population center.
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Paragraph Four is mainly
A. narrating about a fact.
B. describing characters.
C. recording an argument.
D. arguing an issue.
Who is regarded as "the Father of English Poetry"？
A. Geoffrey Chaucer.
B. Edmund Spenser.
C. John Milton.
D. John Gower.
Michael Silverstein implies the following facts EXCEPT that
A. rich women will buy more despite of economic recession.
B. retailers will suffer from the same poor sales as last year.
C. a woman in difficulty will still celebrate holidays by buying.
D. most Americans prefer to look rather than actually buy.
全封闭防化服，主要适用于消防员在化学危险品、()、有毒气体的事故现场抢险救援是穿戴的全密封防护服装。
A. 高温
B. 缺氧
C. 腐蚀性物质
D. 浓烟
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