问答题
求y=（x2+8x+15）分之一的定义域。
x2+8x+15(X+3）（x+5）≠0；所以定义域是x≠-3且x≠-5.......
(↓↓↓ 点击下方‘点击查看答案’看完整答案 ↓↓↓)
已知E1=90V,E2=60V,R1=69,R2=129,R3=369,试用支路电流法求各支路电流。
问答题已知E1=90V,E2=60V,R1=69,R2=129,R3=369,试用支路电流法求各支路电流。
试分析如何评价幼儿园区角活动。
问答题试分析如何评价幼儿园区角活动。
The phrase " to urge people to abide by Christian doctr...
单项选择题The phrase " to urge people to abide by Christian doctrines and to seek salvation through constant struggles with their own weaknesses and all kinds of social evils ”may well sum up the implied meaning of （）.
A.Gulliver's TravelsB.The Rape of the LockC.Robinson CrusoeD.The pilgrim's Progres
