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【简答题】
等边三角形纸片ABC和C'D'E'的边长分别为 和2。 (1)如图1,将△C'D'E'放在△ABC上,使得C'和C重合,且D'和E'分别AC在AC和BC上,固定△ABC,将△C'D'E'绕点C逆时针旋转30°得到△C'DE(如图2),连接AD、BE,C'E的延长线交AB于F,试判断线段BE与AD的数量关系,并证明你的结论; (2)如图,若将△C'DE继续移动,使其在线段CF上沿着CF的方向以每秒1个单位的速度平移,如图3,设△C'DE移动的时间为x秒,△C'DE与△ABC重叠部分的面积为y,求y与x之间的函数关系式,并求出自变量x的取值范围。
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【单选题】听力原文: Tea drinking was common in China for nearly one thousand years before anyone in Europe had ever heard about tea. People in Britain were much slower in finding out what tea was like, mainly becau...
A.
Because they liked to cat tea leaves.
B.
Because they were curious about the taste of tea leaves,
C.
Because they did not know how to do with tea.
D.
Because they wanted to make sandwiches with tea.
【多选题】Tea drinking was common in China for nearly one thousand years before anyone in Europe had ever heard about tea.People in Britain were much slower in finding out what tea was like, mainly because tea ...
A.
The British got expensive tea from India.
B.
Tea reached Britain from Holland. C.The British were the first people in Europe who drank tea. D.It was not until the 17th century that the British had tea. 68.Tea became a popular drink in Britain_____________. A.in eighteenth century           B.in sixteenth century C.in seventeenth century      D.in the late seventeenth century 69.People in Europe began to drink tea with milk because_____________. A.it tasted like milk B.it tasted more pleasant C.it became a popular drink D.Madame de Sevigne was such a lady with great social influence that people tried to copy the way she drank tea 70.We may infer from the passage that the habit of drinking tea in Britain was mostly due to the influence of ________. A.a famous French lady             B.the ancient Chinese C.the upper social class            D.people in Holland 71.What does the passage mainly talk about? A.The history of tea drinking in Britain     B.How tea became a popular drink in Britain C.How the British got the habit of drinking tea   D.How tea-time was born
【简答题】阅读理解. Tea drinking was common in China for nearly one thousand years before anyone in Europe had ever heard about tea.People in Britain were much slower in finding out what tea was like, mainly becaus...
【简答题】How did tea drinking become a trend for the beverage among the aristocracy of England in the seenth century?
【单选题】中暑时发生肌肉痛性痉挛,最常见的是:
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腹直肌
B.
胸大肌
C.
腓肠肌
D.
肛门括约肌
【简答题】How did Starbucks bridge the gap between the tea drinking culture and the coffee drinking culture?
【简答题】阅读理解。 Tea drinking was common in China for nearly one thousand years before anyone in Europe had ever heard about tea . People in Britain were much slower in finding out what tea was like , mainly bec...
【单选题】数控车床最常用的换刀方式是( )。
A.
排刀式刀架
B.
回转刀架
C.
带刀库的自动换刀装置
【单选题】听力原文: Tea drinking was common in China for nearly one thousand years before anyone in Europe had ever heard about tea. People in Britain were much Mower in finding out what tea was like, mainly becaus...
A.
Because they liked to eat tea leaves.
B.
Because they were curious about the taste of tea leaves.
C.
Because they did not know how to do with tea.
D.
Because they wanted to make sandwiches with tea.
【简答题】How did tea drinking become a trend for the beverage among the aristocracy of England in the seenth century?
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