皮皮学,免费搜题
登录
搜题
【简答题】
Vive la Tower! Until New York’s Chrysler Building was completed in 1930,the Eiffel Tower was the tallest structure in the world.Located by the river Seine,on an avenue named after its designer,this 985-foot (300-meter) tower is the most famous edifice(大建筑物) in the city of Paris.Gustave Eiffel’s idea was certainly chosen from among 700 proposals(提议) to represent the city in the International Exhibition of Paris in 1889.It commemorated(纪念) the 100th anniversary of the French Revolution. In 1887,three hundred steel workers spent two years constructing the 7 000-ton tower.Yet,it was almost torn down two decades after its completion.Luckily,its antenna(天线),used for telegraphy at the time,saved it.Last July,it looked to observers as though the tower might be destroyed after all,as ominous(不吉利的) black clouds of smoke encircled the structure.Luck was again smiling upon the tower:the fire turned out to be a small one that was quickly put out  by attendants on duty. To date,more than 200 million people have visited the Eiffel Tower.However,it has not always been a beloved tourist attraction.At first,Parisians despised it.Its architectural style and metallic composition were not considered pleasing.Today,the Eiffel Tower is adorned(装饰) with special lights that sparkle for ten minutes each hour,from sunset until one a.m.If you happen to be passing by,look up at this breathtaking monument for an astonishing sight.The Eiffel Tower,composed of iron and steel,is greater than the sum of its parts. 小题1:If you wanted to see the Eiffel Tower sparkle,when might you stop by? A.1:15 a.m. B.3:30 p.m. C.9:10 p.m. D.0:00 a.m. 小题2:When was the Eiffel Tower almost torn down? A.1907. B.1909. C.1889. D.2003. 小题3:At first,what did Parisians think about the tower? A.The steel and iron parts were unimpressive. B.The awe-inspiring design was attracting. C.Both A and B are correct. D.Neither A nor B is correct.
拍照语音搜题,微信中搜索"皮皮学"使用
参考答案:
参考解析:
知识点:
.
..
皮皮学刷刷变学霸
举一反三
【简答题】萨尔萨舞蹈融合了拉丁及爵士舞蹈的舞步,____、____、____和____是最主要锻炼的身体部位。
【判断题】热导池的灵敏度与电桥通过的电流(即桥流)有关,桥流愈大,灵敏度越高。
A.
正确
B.
错误
【单选题】激光的发射过程不同于普通光的发光过程,因此具有与普通光不同的特性。关于激光的危害及安全措施的叙述错误的是()
A.
可分为直接危害和间接危害
B.
超过安全阈值的激光辐射造成直接危害
C.
高压电因素造成间接危害
D.
一般不用采取安全措施
E.
噪声、低温制冷剂以及电源等造成间接危害
【简答题】汽车保养需要把握喷漆的什么情况?
【多选题】萨尔萨舞蹈融合了拉丁及爵士舞蹈的舞步,____、____、____和____是最主要锻炼的身体部位。
A.
B.
C.
D.
大腿内侧
【判断题】检流计的灵敏度对电桥的灵敏度有着很大影响,因此检流计的灵敏度越高越好。
A.
正确
B.
错误
【判断题】电桥的相对误差是与电桥装置的灵敏度成反比的,即电桥装置灵敏度越高,相对测量误差越小。( )
A.
正确
B.
错误
【判断题】SLA用的激光与SLS用的激光不同。SLA用的是紫外激光,而SLS用的是红外激光。
A.
正确
B.
错误
【单选题】若试样中混入杂质,会使( )。
A.
熔点降低,溶距增大
B.
熔点降低,溶距减小
C.
熔点升高,溶距减小
D.
熔点升高,溶距增大
【判断题】电桥的灵敏度越高越好
A.
正确
B.
错误
相关题目: