填空题
请讲明所填句子的理由
1.Speaking/This is Tim speaking 2.Did you enjoy the meal? 3.Would you please adjust the line? 4.It was awlful! 5.It nearly hit me
答:1.Tom hasn't read the book, neither has Jim. 2. He didn't work out the problem, ...详情>>
答:待到重阳日,还来就(菊花 )详情>>
答:1: m^4+n^4+2mn+1
这样的式子随便写,只要次数为四就可以了
2:8cm
因为三角形的两边已经分别是4和8了,所以第三边的范围是:4