相关,H是种能使澄清石灰水变浑浊的气体,在②的反应前后B的量和化学性质都不改变.
试推断:
学完本课《花钟》,我知道为什么不同的植物开放的时间不同。
His ____ ____ is Green.
下列两幅图片所见证的历史事件是
A:Hello,Tom.
B:Hi,Jenny. How do you feel?
A:I feel happy. Look! This is my sister(妹妹).
B:What's her name?
A:Her name is Kate.
B:What colour is her hair?
A:Her hair is black.
B:What colour are her eyes?
A:They are blue.
B:How nice(漂亮的)!