此区选民成分单一，几乎都是清一色的贫民，情况与选民成分复杂的南区大不相同。
Almost all his constituents are poor, unlike the mixed picture farther south.
入声在官话区的消失和演变是一个很复杂的问题。
The extinction and evolution of rushing tone in mandarin district is a very complex issue.
核心区景观类型的形状最复杂，实验区斑块形状规则。
The patch shape of core area is most complex, experimental area is more regular.
核心区景观类型的形状最复杂，实验区斑块形状规则。
The patch shape of core area is most complex, experimental area is more regular.
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