the 21st centry
21st=twenty-first
猜你喜欢
- 1Look!They are studying for math test now.(改错)
- 2for many years,people don't know why they don't want to change their size.
- 3把一个面积是7(上底为3 下底为4)的梯形分成三个三角形,使它们的面积比是1:2:3
- 4都有哪些物质在化学反应中放热或吸热?
- 5物理问题1M/S=3.6KM/H 为什么1KM/H约等于0.28M/S
- 6有9个连续的偶数,最大的偶数是最小的偶数的3倍,这9个分别是什么数
- 7Will you do me ____ to translate this sentence into English.
- 8怎么画圆的五等分
- 9分析一句英语句子
- 10高中生物~~B细胞和浆细胞在功能上的区别是?