the middle of the 20th century. African Americans had lived in Harlem since the 1600s, but the great wave of migration began in 1904, when thousands of African Americans from all over the country moved north. Many of Harlem's new residents were trying to escape the poverty, discrimi...
especially for green vegetables, resulted in reform in people’s dieting habits between 1830 and the American Civil War, accelerated by a drastic expansion of the urban areas arid the rapid amelioration in an economy of the populace. With the growth of the cities and towns, he distance ...
In the Netherlands, around 1590, Hans Janssen and his son invented a compound microscope—constructed of two convex lenses. In the early 1600s (about 1610), the great Galileo Galilei (1564–1642) constructed several simple microscopes and telescopes, which he called as “occhialino.” The term...
根据第一段中“In the late 1600s, Leeuwenhoek, inspired by the magnifying lenses he used to examine cloth, built some of the first microscopes. He developed a technique to improve the quality of tiny, rounded lenses, some of which could magnify an object up to 270 times.(17世纪晚期,...
bikes with really big front wheels. People called these “penny-farthings” and “ordinaries”. They became really popular in the 1870s and 80s and helped give rise to the first bicycle clubs and races. In 1884, Englishman Thomas Stevens began ...
Master’s story Fu Haikang, 40, is the only male inheritor (男性传承人) of Li brocade making skills in Baisha Li autonomous county (白沙黎族自治县) in Hainan. When his grandma showed him the traditional clothes of the Li people during his c...
of flying可知,该句句意:她是解放军空军的一名有1600个小时飞行经历的飞行员;根据句中的1,600可知用复数形式;故填 hours;74.答案:was;该题考查系动词的应用;be responsible for是固定短语,对…负责;该句为一般过去时;故填was;75.答案:since;该题考查连词运用;根据首字母和句中信息Wang has served the ...
In the late 1600s, the Yemeni monopoly on coffee production broke down and coffee production started to spread around the world, helped by European colonisation. Europeans set up coffee plantations in Indonesia and the Caribbean and production of coffee in the colonies skyrocketed. Different types ...
The history of skiing is complicated (复杂的), and there’s no telling no how many people had their hands in the development of skis over the years. Interestingly enough, skis were used in the Sierra Nevada Mountains during the gold rush, and downhill races were organized by mining camps....
When she explains how she translates someone’s qualities (品质) into perfume, Weng uses Xishi as an example. “The gardenia (栀子花), her favorite flower, makes up much of the scent,” Weng noted. “I also used folium artemisiae argyi (...