微分方程2x3y′=y(2x2-y2)的通解是______. 发布时间：2018-06-18 00:34 │ 来源：www.tikuol.com 题型：填空题 问题： 微分方程2x3y′=y(2x2-y2)的通解是______.
题型：填空题 完形填空。 I want to go to the People's Hospital to see my friend Li Xia, 1 _____ I don't know the way. I need some 2 _____. Just then 3 _____ old woman walks past. I ask her, "Excuse me, 4 _____ is the way to the People's Hospital?" "Sorry, I don't know. You can 5 _____ that policeman over there," she says. "Thank you all the same," I say. Then I go to the 6 _____. "Excuse, where is the People's Hospital?" I ask. The policeman says, "It is not far 7 _____ here. It's 8 _____ five minutes' walk. Go along this street, and 9 _____ right 10 _____ the third turning, and you can find it." "Thank you very much. Goodbye!" "That's all right. Bye!" ( )1. A. so ( )2. A. help ( )3. A. a ( )4. A. where( )5. A. ask ( )6. A. doctor ( )7. A. to ( )8. A. at ( )9. A. turn ( )10. A. at B. but B. helps B. an B. how B. tell B. teacherB. from B. about B. to B. in C. and C. friend C. the C. what C. say C. old man C. for C. of C. walk C. on D. or D. friends D. / D. which D. talk D. policeman D. away D. for D. take D. under 查看答案