提示
Where did you go?
What did you do?
How did you feel about the trip?
要求:80词左右,可适当发挥。电子邮件的格式已给出,不计入总词数。
Dear Tom,
Yours,
Wang Dan
有五条线段长度分别为1,3,5,7,9,从这5条线段中任取3条,则所取3条线段能构成一三角形的概率
下列说法中正确的是 ( )
仿写词语。