Except fro Florida and Texas, the top 10 in rate of growth is composed of Western states with 7.5 million people - about 9 per square mile.
除了佛罗里达州和得克萨斯州外，处于人口增长率前10位的都是西部各州，共有750万人——每平方英里约9个人。
Of all the men in the survey, they rate themselves the least fun-loving and the most responsible.
在所有参与调查的人中，他们认为自己是最不喜欢玩乐而最负责任的人。
After years of moving in lockstep, France and Germany are growing apart at an alarming rate.
多年步伐一致之后，法国与德国正在以惊人的速度分道扬镳。
The standard rate of income tax was cut to 23p in the pound.
所得税的标准税率削减到了每英镑23便士。
To obtain empirical data regarding the energy costs of singing, Thomas examined the relationship between song rate and overnight changes in body mass of male nightingales.
为了获得有关唱歌能量消耗的经验数据，托马斯研究了鸣声率与雄性夜莺在夜间的体重变化之间的关系。
In places, the water table is declining at a rate of a meter a year, necessitating the periodic deepening of wells and the use of ever-more-powerful pumps.
在一些地方，水位正以每年一米的速度下降，需要定期加深井并使用更强大的水泵。
If such practices are unchecked, half the species in the Coral triangle will continue to disappear at a rate of 1-2% a year.
如果这些行为不加以制止，那么珊瑚三角区内一半的物种将以每年1-2％的速度继续消亡。
We wanted to know if the length of time food is in contact with a contaminated surface affected the rate of transfer of bacteria to the food.
我们想知道食物与被污染的表面接触的时间长短是否会影响细菌转移到食物上的速度。
The resulting limit, given in units of bits per second, is the absolute maximum rate of error-free communication given signal strength and noise level.
在给定信号强度和噪声水平的情况下，以比特每秒为单位给出的最终限制是无差错通信的最大绝对速率。
Childhood amnesia may reflect a high rate of forgetting, in other words, children under the age of 3 do form memories and do so without language.
儿童健忘症可能反映了很高的遗忘率，换句话说，3岁以下的儿童确实形成了记忆，而且是在没有语言能力的情况下形成的。
An estimate of the age of the ocean was obtained by diving the total salt in the ocean by the rate of salt added each year.
对海洋年龄的估计是通过以海洋中的总含盐量除以每年盐的增长率得出的。
That rapid replication rate also increased the chances of strains evolving in ways that allowed them to evade hog immune systems.
那样迅速的复制速度也增加了菌株进化的机会，使它们能够用种种方式避开猪的免疫系统。
By the early twentieth century, the question about the rate of evolution had been answered in favor of gradualism to most biologists' satisfaction.
到二十世纪初，关于进化速度的问题已经得到了答案，答案支持渐进主义，大多数生物学家对此感到满意。
Over the past three decades, the number of students leaving home each year to study abroad has grown at an annual rate of 3.9 percent, from 800,000 in 1975 to 3.5 million in 2008．
在过去的30年里，每年出国留学的学生人数以每年3.9%的速度增长，从1975年的80万人增长到2008年的350万人。
Over the past three decades the number of students leaving home each year to study abroad has grown at an annual rate of 3.9 percent, from 800,000 in 1975 to 3.5 million in 2008．
在过去的30年里，每年出国留学的学生人数以每年3.9%的速度增长，从1975年的80万人增长到2008年的350万人。
Huxley reasoned that flying vertebrates must have been warm-blooded because flying implies a high rate of metabolism, which in turn implies a high internal temperature.
赫胥黎推断，会飞的脊椎动物一定是温血动物，因为飞行意味着较高的新陈代谢率，而新陈代谢率又意味着较高的内部温度。
Changes in the money supply affect the level of economic activity and the interest rate.
货币供给的变化影响经济活动水平和利率。
At the current rate of decline, many of the rain forest animals could become extinct in less than 10 years.
按照目前的下降速度，许多雨林动物不到十年就会绝种。
Figures published today show another fall in the rate of inflation.
今天公布的数字表明通货膨胀率又一次下降。
Our calculations of the cost of our trip were thrown out by changes in the exchange rate.
我们旅行费用的计算因为汇率变动而完全打乱了。
By the turn of the century, Pittsburgh had the highest death rate in the United States.
到了世纪交替时，匹兹堡的死亡率居全美之首。
There's been a sharp rise in the rate of inflation.
通货膨胀率急剧上升了。
The supply of oil can be shut off unexpectedly at any time, and in any case, the oil wells will all run dry in thrty years or so at the present rate of use.
石油供应可能会随时意外中断；不管怎样，以目前这种消费速度，只需30年左右，所有的油井都会枯竭。
Some 61% used contraceptives, just a few percentage points short of the 65-80% rate prevailing in Europe, North America and most of East Asia.
61%的人使用避孕措施，仅比欧洲、北美和东亚大部分地区普遍采用的65-80%的比率低几个百分点。
It follows that melon plants have a lower-than-usual rate of photosynthesis when their roots are in rain-soaked soil.
因此，当瓜类植物的根在雨水浸湿的土壤中时，它们的光合作用率低于通常水平。
After the personal-savings rate dipped to zero in 2005, the shock of the economic crisis last year prompted people to snap shut their wallets.
在2005年个人储蓄率降至零之后，去年经济危机的冲击促使人们迅速捂紧钱包。
In the Amazon, my colleagues and I found the mortality rate for the biggest trees had tripled in small patches of rainforest surrounded by pasture land.
在亚马逊河流域，我和我的同事们发现，在被牧场包围的一小片雨林中，最大的树木的死亡率增加了两倍。
"By following individuals over time," Salthouse said, "we gain insight in cognition changes, and may possibly discover ways to slow the rate of decline."
索尔特豪斯说：“随着时间的推移，我们通过跟踪个体对认知变化有了更深刻的认识，并可能找到延缓认知速度下降的方法。”
"By following individuals over time," Salthouse said, "we gain insight in cognition changes, and may possibly discover ways to slow the rate of decline."
索尔特豪斯说：“随着时间的推移，我们通过跟踪个体对认知变化有了更深刻的认识，并可能找到延缓认知速度下降的方法。”
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