大多数动物是双倍体，但也有全单倍体或雄性单倍体(如蜜蜂和蚂蚁)物种被报道。
Most animals are diploid, but haploid-only and male-haploid (such as honeybee and ant) species have been described.
大部分的双倍体基因在早期经历了重要的不严格的选择阶段，在这个时期他们的模式片段以有效的，不确定的方式进化。
Most duplicated genes experience a brief period of relaxed selection early in their history, with a moderate fraction of them evolving in an effectively neutral manner during this period.
研究团队增加了体组件，比如双倍的电容器（这是一种能在换极前一直充电的元件）。
Instead, the team added body components that double as capacitors, devices that hold an electrical charge until they are tapped.
经济合作与发展组织(经合组织)双倍上修明年的增长水平，即其30个首要发达经济体平均增长水平将达到1.9%，预计2011年将达到2.5%。
The OECD doubled its growth forecast next year to an average of 1.9% for 30 leading developed economies, and to 2.5% in 2011.
所以它的后代有双倍的染色体数量，它们随机地轻而易举地处理直到它们重新接近正确数目。
So its progeny have double the normal amount of chromosomes, which they randomly toss off till they're near the right number again.
我们会让我们的经济双倍增长，我们将成为世界上最强大经济体。
We will double our growth and have the strongest economy anywhere in the world.
我们会让我们的经济双倍增长，我们将成为世界上最强大经济体。
We will double our growth and have the strongest economy anywhere in the world.
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