First of all, this article analyzes the population trend and the current situation of housing rental of a city.

首先，本文分析了某城市的人口形势和出租房屋目前的状况。

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Effect of temperature on development, survival, reproduction, population parameter and population trend index of Spodoptera litura (Fabricius) were studied.

研究了温度对斜纹夜蛾的发育、存活、生殖、种群参数和种群趋势指数的影响。

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The regression equations of the rates of hatching, larvae survival, emergence, the egg number laid by a female and population trend indices against temperatures were analyzed.

测定了不同温度下莲雾毒蛾各虫态的存活状况，并就卵孵化率、幼虫存活率、蛹羽化率、产卵量和种群趋势指数等指标与温度的关系进行相关性分析。

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The state-by-state information is not yet complete, but Marc Perry says demographers found a clear trend in population growth.

VOA: special.2011.03.14

Siberia is sparsely inhabited because of a worldwide trend of population movement to cities, and because it is part of a very large country with a proportionally very small population.

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Slowing the economy, such a trend could increase the share of the population relying on government transfers, leading to a vicious cycle (Alesina and Wacziarg 1998).

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Hoppe says that even when the role of rising population in storm paths is removed from the accelerating trend in losses, climate change emerges as a clear factor in the increased losses.

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