成人高考专升本高等数学(一)应试模拟题(8)
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微分方程y＋y＝0的通解为（ ）．
- A.<img src="//img1.yqda.net/question-name/95/26ba45b63966144a10448778aeb3cf.jpg" height="12" width="28" />
- B.<img src="//img1.yqda.net/question-name/ac/daec7a2f523410798534dcbf79e887.jpg" height="16" width="47" />
- C.<img src="//img1.yqda.net/question-name/8e/2ea9b38fc41b779d763d985f868884.jpg" height="13" width="37" />
- D.<img src="//img1.yqda.net/question-name/dd/dc4e32bb5e7623819c80010df1aec3.jpg" height="13" width="41" />
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- A.为所给方程的解，但不是通解
- B.为所给方程的解，但不－定是通解
- C.为所给方程的通解
- D.不为所给方程的解
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- A. <img src="//img1.yqda.net/question-name/ae/90bfde742b389c3a0b4b5084687878.png" alt="" />
- B. <img src="//img1.yqda.net/question-name/0b/cf8051befc73c4df37b33bf1855a6f.png" alt="" />
- C. <img src="//img1.yqda.net/question-name/dc/e019cb26f15faff7288299749a6e32.png" alt="" />
- D. <img src="//img1.yqda.net/question-name/d4/8b13269283a2edc43d014464bc4445.png" alt="" />
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设有直线
当直线l1与l2平行时，λ等于（ ）．
- A.1
- B.0
- C.<img src="//img1.yqda.net/question-name/30/c5ceaf7c85f0cca3decbbdce77a39d.jpg" height="25" width="21" />
- D.一1
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- A.1
- B.3
- C.<img width="14" height="26" src="//img1.yqda.net/question-name/9c/cda3eec58f82d0d3bdd5e6297daa77.png" />
- D.0
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- A.<img width="92" height="29" src="//img1.yqda.net/question-name/99/72418662057225b5cbfc3e6402023c.png"/>
- B.<img width="93" height="29" src="//img1.yqda.net/question-name/7f/73043aa16aea6eae94251ebbf87877.png"/>
- C.<img width="93" height="29" src="//img1.yqda.net/question-name/fc/463ab01cd83e101d0444fd1665d6e0.png"/>
- D.<img width="93" height="30" src="//img1.yqda.net/question-name/ff/586254e7448767a694ccc1074bd35f.png"/>
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- A.较高阶的无穷小量
- B.等价无穷小量
- C.同阶但不等价无穷小量
- D.较低阶的无穷小量
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- A.2
- B.<img src="//img1.yqda.net/question-name/e1/61bf6f7df186ec91993ed0915c0d61.jpg" height="32" width="25" />
- C.1
- D.－2
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