单项选择题

A．Because it is the first treatment introduced into Australia.
B．Because it is the most effective treatment.
C．Because it is the only treatment allowed in Australia.
D．Because it is the cheapest treatment in Australia.
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单项选择题
A．Patients practice.B．Advice from experts.C．Recognition by government.D．Suggestions from hospital.
A．Patients" practice.
B．Advice from experts.
C．Recognition by government.
D．Suggestions from hospital.
填空题
vertical support beams[解析] 细节题。讲座原文提到现代大多数普通摩天楼的设计：Today s most common skyscraper design places vertical support beams throughout a building. 即整楼布满了纵向的支撑梁，因此答案是vertical support beams。
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