下图是用来净化河水的简易装置,下面对该净水器分析正确的是
A:能把硬水软化
B:能杀菌消毒
C:能得到纯净水
D:活性炭主要起吸附异味、色素的作用
根据图表信息,补全对话
1. Q: When is Gina Brown's birthday?
A: ____
2. Q: ____
A: She is 12 years old.
3. Q: Is David Green's birthday on July 12th?
4. Q: ____
A: His birthday is on October 22nd.
5. Q: What's his age?
A: ____
粮店运进大米4300千克,第1天卖出1280千克,第2天卖出1530千克.粮店还剩大米____千克?