根据句意和首字母提示完成单词(初一)
Who can a_____it in English? The man b_____your brother and your friend is ourteacher. There is a ball on the f_____.
Who can answer it in English? The man behind your brother and your friend is ourteacher. There is a ball on the floor.
答:应该是 carry 吧,意思是“学生们经常帮老人们提水,他们是优秀的少先队员”,Young Pioneer意思是“少先队员”。详情>>
问:已知a,b属于R,求证:a^2+b^2>=a*b+a+b-1
答:答案如下: 由(a-1)^2+(b-1)^2>=0 得到a^2+b^2+2>=2(a+b)--------(1) 又由(a+1)^2+(b+1)^2>=2(a+...详情>>
问:“ prefer to...rather than ”是一个词组吗?
答:prefer to do rather than do sth 与其作后者的事情的不如做前者去事情。 可以等同于= prefer to do instead o...详情>>