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TF阅读真题第943篇The Origin of Flight in Birds
The Origin of Flight in Birds 题目： Debate over avian origins was stimulated in 1861 when the 150-million-year-old fossil of a bird-like creature was unearthed. Called Archaeopt...
TF阅读真题第849篇Azolla and Climate in the Arctic and Europe
TF阅读真题第849篇Azolla and Climate in the Arctic and Europe
TF阅读真题第883篇The Azolla Event
The Azolla Event During the early Eocene period, about 56 million years ago, Earth's atmosphere had high levels of carbon dioxide(CO2) which warmed the planet. But a...
TF阅读真题第851篇The Rise and Spread of Japanese Woodblock Prints
TF阅读真题第851篇The Rise and Spread of Japanese Woodblock Prints
TF阅读真题第923篇Science and Nineteenth-Century Visual Arts
Science and Nineteenth-Century Visual Arts In the middle of the nineteenth century, rapid developments in the sciences and popular fascination with recent technologi...
TF阅读真题第869篇Temperate Plant Phenology
Temperate Plant Phenology Phenology is the timing of growth and reproductive activity within a year, and it can vary greatly among plant species, populations, and even indiv...
TF阅读真题第937篇Wool Manufacturing in Europe in the High Middle Ages
Wool Manufacturing in Europe in the High Middle Ages During the High Middle Ages (1000-1300 c.E.), the Baltic Sea, North Sea, and English Channel tied together the peoples...
TF阅读真题第939篇Indigo
Indigo 题目： Indigo is a blue dye produced from plants of the genus group Indigofera, grown in tropical and subtropical climates, and it has been highly valued since ancie...
