SDI表示（），是表征反渗透系统进水水质的重要指标之一，在反渗透入口，SDI控制范围为（）。
参考答案：淤泥污染指数；≤3
任务型阅读：根据表格信息完成下列句子
If you want to go to Beijing from Zhengzhou, the information below can help you.
1. The cheapest way from Zhengzhou to Beijing is by ____.
2. The fastest way from Zhengzhou to Beijing is by_ ___
3. The earliest transportation from Zhengzhou to Beijing is by__ __.
4. The longest travel from Zhengzhou to Beijing is by__ __
5. The____ _____leaves at night.
脑出血后出现抗利尿激素分泌异常综合征，应限制水摄入量在一日800～1000ml，补钠一日（）g
A.14～18
B.20～24
C.9～12
D.1～2
