Lighting in Museums       The practice of reducing light exposure in museums was prompted by the publication, in 1978， of Garry Thomson's book, The Museum Environ...

The Collapse of Copán 题目：   The ancient Mayan kingdom of Copan, in what is now western Honduras, flourished for many years in the first millennium but declined sharpl...

  The Phenomenon of Hypnosis   题目：   Hypnosis is a process in which the person being hypnotized (the volunteer) demonstrates willingness to adopt suggestions by...

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...

Currency and the Emergence of china's Market Economy 题目：     China's Song dynasty (960-1279 c.E.), building on developments of the earlier Tang dynasty(618-907 c.E...

TF阅读真题第941篇Megapode Approaches to Incubation Megapode Approaches to Incubation 题目：     The megapodes are a family of birds with unusually large legs. Alone am...

Transportation and Urban Development in Los Angeles   题目：   In the early twentieth century, the key urban problem in the United States was congestion. Streetcars (pu...

TF阅读真题第830篇Dating Ancient Art

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...

Deer and the Forests of Kinkazan 题目： The ancient beech forests of Kinkazan Island off the coast of northern Japan are in danger of disappearing. Few beech saplings (young tree...