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【简答题】
Watch the video clip again, and finish the compound dictation descendant 后代 后裔 orator 演说家 figure 人 Victorian 维多利亚时代的 Born in Blenheim palace on the 30th of November, 1874, he was a (1)____________ descendant to John Churchill, the first Duke of Marlborough (马尔巴罗公爵), for whom the great palace had been built and the first cousin of the Dan Duke. His father, Lord Randolph Churchill was a (2)__________ and he enjoyed a brief but spectacular political career becoming Chancellor of the Exchequer before dying at the age of 46 in 1895. Winston's father was always (3)___________, so the boy was devoted to his mother. Jenny was an American from a wealthy Jerome(杰罗姆)family and appeared to have American-Indian blood in her veins. One of the great beauties of the Victorian (4)__________, she was a friend of many of the leading figures in British life including (5)___________. His mother’s network of contacts was just one of the (6)____________ with which Winston was born and they frequently helped his career.
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举一反三
【多选题】提高控制系统可靠性的主要方法有
A.
系统的高可靠性设计。
B.
基于故障检测和诊断技术的容错设计。
C.
提高元器件的可靠性。
D.
控制系统的容错设计。
【判断题】对于一定波长的X射线来说,晶体中能产生衍射的晶面数是有限的。
A.
正确
B.
错误
【判断题】对于一定波长的X射线来说,晶体中能产生衍射的晶面数是有限的
A.
正确
B.
错误
【判断题】出纳员应在现金日记账每笔业务登记完毕,结出余额后,与库存现金进行核对。
A.
正确
B.
错误
【简答题】提高控制系统的可靠性有哪些主要方法?
【单选题】烯烃与氯气在 500 °C 下反应 , 其历程为 :
A.
亲核取代
B.
自由基取代
C.
亲电加成
D.
自由基加成
【单选题】维系蛋白质一级结构的主要化学键是
A.
盐键
B.
疏水键
C.
氢键
D.
二硫键
E.
肽键
【判断题】企业采用品种法计算产品成本时,不论当月是否有完工产品,都必须按月计算成本。
A.
正确
B.
错误
【判断题】对水平面刨削加工时,导轨在水平面内的直线度误差对加工精度影响最大。
A.
正确
B.
错误
【单选题】烯烃与氯气在 500 °C 下反应 , 其历程为 :
A.
亲电加成
B.
亲电取代
C.
自由基取代
D.
亲核取代
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