【简答题】Atoms(原子) are all around us. They are the bricks of which everything is made. Millions of atoms are held in just one grain of salt , but in spite of their small size they are very important. The way a...
【简答题】补全对话。 ---__1__ ---I wish I could say the same! Only joking! How have you been? --- As well as usual. The kids have all grown up and moved out, so it's just the two of us now. __2__ --- That would be g...