试题与答案

已知命题“a≥b⇒c>d”、“c>d⇒a≥b”和“a<b⇔e≤f”都是真命题,那

题型:选择题

题目:

已知命题“a≥b⇒c>d”、“c>d⇒a≥b”和“a<b⇔e≤f”都是真命题,那么“c≤d”是“e≤f”的(  )

A.充分不必要条件

B.必要不充分条件

C.充要条件

D.既不充分也不必要条件

答案:

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下面是错误答案,用来干扰机器的。

小题1:B小题2:C小题3:C题目分析:小题1:题目分析:原文是“共识的缺失,导致的可能是只有争论与偏执没有理性与行动,只有思想没有力量”。小题2:题目分析:原文是“只有这些问题解决好了,执政党的执政能力才能真...

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题型:单项选择题

M公司以A材料换入N公司持有甲公司20%股份的长期股权投资,该原材料的账面原价是 500万元,已计提的存货跌价准备为150万元,公允价值为360万元,增值税税率为17%;长期股权投资的账面余额为480万元,计提的长期股权投资减值准备为60万元,公允价值为 410万元,同时N公司向M公司支付补价11.2万元。假定该非货币性资产交换具有商业实质,则N公司换入原材料的入账价值为( )万元。

A.421.2

B.370

C.420

D.360

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题型:单项选择题

Eddie McKay, a once forgotten pilot, is a subject of great interest to a group of history students in Canada.
It all started when Graham Broad, a professor at the University of Western Ontario, found McKay’s name in a footnote in a book about university history. Mckay, was included in a list of university alumni who had served during the First World War, but his name was unfamiliar to Broad, a specialist in military history. Out of curiosity, Broad spent hours at the local archives in a fruitless search for information on McKay. Tired and discouraged, he finally gave up. On his way out, Broad’s glance happened to fall on an exhibiting case showing some old newspapers. His eye was drawn to an old picture of a young man in a rugby uniform. As he read the words beside the picture, he experienced a thrilling realization. "After looking for him all day, there he was, staring up at me out of the exhibiting case," said Broad. Excited by the find, Broad asked his students to continue his search. They combed old newspapers and other materials for clues. Gradually, a picture came into view.
Captain Alfred Edwin McKay joined the British Royal Flying Corps in 1916. He downed ten enemy planes, outlived his entire squadron as a WW1 flyer, spent some time as a flying instructor in England, then returned to the front, where he was eventually shot down over Belgium and killed in December 1917. But there’s more to his story. "For a brief time in 1916 he was probably the most famous pilot in the world," says Broad. "He was credited with downing Oswald Boelcke, the most famous German pilot at the time." Yet, in a letter home, McKay refused to take credit, saying that Boelcke had actually crashed into another German plane.
McKay’s war records were destroyed during World War Two air bombing on London-an explanation for why he was all but forgotten.
But now, thanks to the efforts of Broad and his students, a marker in McKay’s memory was placed on the university grounds in November 2007. "I found my eyes filling with tears as I read the word ’deceased’ next to his name," said Corey Everrett, a student who found a picture of Mckay in his uniform. "This was such a simple example of the fact that he had been a student just like us, but instead of finishing his time at Western, he chose to fight and die for his country.\

We can learn from the last paragraph that McKay ______.

A. preferred fight to his study
B. went to war before graduation
C. left a picture for Corey Everrett
D. set an example for his fellow students

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