皮皮学，免费搜题
登录
搜题
【简答题】
已知y1＝xex＋e2x，y2＝xex＋e－x，y3＝xex＋e2x－e－x是某线性非微分方程的三个解，求该微分方程．
手机使用
分享
复制链接
新浪微博
分享QQ
微信扫一扫
反馈参考答案：
举一反三
【单选题】The state advocates ( ) tourism methods and supports and encourages various social institutions to carry out tourism public welfare publicity.
A.
healthy, civilized, friendly
B.
happy, harmonious, civilized
C.
health, civilization, environmental protection
【简答题】counter sample
【判断题】一个漫长的过渡和等待时期就此开始,这个时期的叫法五花八门,含混不清:如同一位当地人所说,如果说秋 季“是个整体”,那么从冬季到春季的过渡期就是由一些叫法不一、界定不清、几乎都是不祥的时间拼凑而成的。
A.
正确
B.
错误
【单选题】如图所示,任意闭合曲面 内部有一点电荷 , 为 面上一点。若将点电荷 在闭合曲面内从 处移至 处,且 ,那么会发生的变化是
A.
穿过 面的电通量改变， 点的场强不变
B.
穿过 面的电通量不变， 点的场强改变
C.
穿过 面的电通量不变， 点的场强不变
D.
穿过 面的电通量改变， 点的场强改变
【单选题】Repairs
A.
Repairs are done with state-of the-art laser equipment.
B.
Repairs are carried out by other companies.
C.
The company can repair semitrailers.
【单选题】A counter-counter-offer can be counted as the following except for ()
A.
counter-offer
B.
offer
C.
quotation
【判断题】Chris repairs the scanner beside Christophers bed for fear that his son call him.
A.
正确
B.
错误
【判断题】Historical sociology does not view the state as fixed existence of world politics, and advocates a historical approach to rethink the present.
A.
正确
B.
错误
【单选题】Repairs
A.
Repairs are done with state-of -the-art laset equipment
B.
Repairs are carried out b other companies
C.
The company can repair semi-trailers
【简答题】Counter Sample
相关题目：
参考解析：
知识点：
题目纠错 0
发布
