题目： Living-History Museums in the United States       The living-history approach to teaching social history combines restored or re-created historical ...

Archaeological Evidence for Social Complexity   题目：     Ancient human groups that used advanced technology and divided labor into highly specialized roles are c...

Horns in Beetle Competition       Intraspecific competition-that is, competition between members of the same species for limited resources-can be a complex phenome...

TF阅读真题第854篇Why Did Social stratification Emerge

TF阅读真题第799篇Surviving as a Conifer

  题目： French Gothic Cathedrals Gothic-style cathedrals, known for their impressive height. pointed arches, and intricate line patterns, are among the most elaborate s...

TF阅读真题第843篇The Sistine Ceiling

Building Materials in the Nineteenth Century       For most of the nineteenth century, European architects built in historical revival styles (styles that imitate ...

TF阅读真题第829篇Expansion of the Inca Empire

TF阅读真题第835篇Sauropod Teeth and Nostrils