2013年成人高考高升本《理科数学》权威预测试卷五
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已知f(x)是偶函数，定义域为(-∞，+∞)，且在[0，+∞)上是减函数，设P=a2-a+1(a∈R)，则（ ）
- A.<img src="//img1.yqda.net/question-name/cb/e87b03c5c9972e1f4399914501997e.jpg" alt="" />
- B.<img src="//img1.yqda.net/question-name/3d/30c2ebf411f524e18b6fd00cc321c8.jpg" alt="" />
- C.<img src="//img1.yqda.net/question-name/1a/f87a55f774381f81a02b17d9cac9d2.jpg" alt="" />
- D.<img src="//img1.yqda.net/question-name/ca/31ffa80b2b4aa65781b685dacebcb3.jpg" alt="" />
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- A.<img src="//img1.yqda.net/question-name/14/9cdcf85cebab8defd15c71833ecd0d.jpg" alt="" />
- B.<img src="//img1.yqda.net/question-name/08/c9cbd1f84f9acad89b6b81295501c7.jpg" alt="" />
- C.<img src="//img1.yqda.net/question-name/01/280cc9952fb1cf16481cbda6268c5d.jpg" alt="" />
- D.<img src="//img1.yqda.net/question-name/65/3838e49d4f3caf1d8ef47558cefceb.jpg" alt="" />
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下列四组中的函数f(x)，g(x)表示同一函数的是（ ）
- A.<img src="//img1.yqda.net/question-name/82/e8cb3cd43c25557c6e6880b3bcf0c2.jpg" alt="" />
- B.<img src="//img1.yqda.net/question-name/c2/3950b0cf9e3ab1f63fa309afe5794c.jpg" alt="" />
- C.<img src="//img1.yqda.net/question-name/f5/4b0b969a339cf6639c7dccb6836bb9.jpg" alt="" />
- D.<img src="//img1.yqda.net/question-name/03/91467340ff6314327f01d38cdd117f.jpg" alt="" />
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- A.8x-4y+25=O
- B.8x+4y+25=0
- C.8x-4y-25=0
- D.8x+4y-25=0
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已知点P(sinα—COSα／，tanα)在第一象限，则在[0，2π)内α的取值范围是（ ）
- A.<img src="//img1.yqda.net/question-name/0a/4e94918402badd052f9465b083d33c.jpg" alt="" />
- B.<img src="//img1.yqda.net/question-name/fb/8ee001bed6009eab636fd16f431f4e.jpg" alt="" />
- C.<img src="//img1.yqda.net/question-name/27/9d3d9d7a10c78eb085f91ca8038b13.jpg" alt="" />
- D.<img src="//img1.yqda.net/question-name/02/50e86bb76900e1ae5777f3d0305141.jpg" alt="" />
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- A.m=3，n=1
- B.m=-3，n=1
- C.<img src="//img1.yqda.net/question-name/62/af7fdeba1465ee7c0c6434f7c99f31.jpg" alt="" />
- D.<img src="//img1.yqda.net/question-name/e6/a98f3059892912987978c0fc2f42a2.jpg" alt="" />
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- A.m<2或m>3
- B.2<m<3
- C.m>3
- D.<img src="//img1.yqda.net/question-name/e4/1256c364ecab467164eb0c100ded9e.jpg" alt="" />
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- A.没有极大值
- B.没有极小值
- C.的极大值为-1
- D.的极小值为-1
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- A.<img src="//img1.yqda.net/question-name/9f/f62c6d03b916e279e2814e1ad74264.jpg" alt="" />
- B.<img src="//img1.yqda.net/question-name/3e/6198052e57b1cb8e50ba5877f26d6b.jpg" alt="" />
- C.<img src="//img1.yqda.net/question-name/7e/8e1fa3fe03181e69a196dcb742b5de.jpg" alt="" />
- D.<img src="//img1.yqda.net/question-name/a7/bc99d9efc5141308424d5a987b5765.jpg" alt="" />
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- A.<img src="//img1.yqda.net/question-name/95/a8596c4a006d70863d114e020a1a42.jpg" alt="" />
- B.<img src="//img1.yqda.net/question-name/86/ea0f9e8a9d08a8bebd93030cd054e6.jpg" alt="" />
- C.<img src="//img1.yqda.net/question-name/ac/0426bbda797f991febbcfdfd307d38.jpg" alt="" />
- D.<img src="//img1.yqda.net/question-name/54/1833e7701d054b20081419eae48a30.jpg" alt="" />
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