t2x"－tx'＋x=6t＋34t2，x1=t，x2=tlnt．已知齐次线性微分方程的基本解组x1，x2，求方程对应的非齐次线性

Murphy&39;s Law suggests, "If anything can go wrong, it will." Murphy has motiva

Einstein Named "Person of the Century"Albert Einstein, whose theories on space t

有以下程序：include<stdi0．h> define S（x)（x)"x"2main（） { int k一5，j=2； Dr

有以下程序：include<stdio．h>main（）{ char*s="[2]34"；int k=0，a=0； whil（s[k＋

有以下程序include<stdio．h>main{ int a=1,b=2，c=3，x;x=（a^b)＆C；printf（"％d"，x)

回答题： Animal&39;s "Sixth Sense"Atsunami was triggered by an earthquake in th