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• 根据下列内容，回答196-200题。Waterproblem
• 根据下列内容，回答196-200题。Waterproblem
• What'stheauthor'sattitude_____
• What'stheauthor'sattitude_____
• WhydidtheAfricannationswelcome
• WhydidtheAfricannationswelcome
• Sincemanyoftheolder,bigger-tus
• Sincemanyoftheolder,bigger-tus
• Accordingtothepassage,"dwindle
• Accordingtothepassage,"dwindle