问题
选择题
You are very young. You must remember _______. [ ]
A. what your father said
B. what your father say
C. what does your father say
答案
答案：A
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You are very young. You must remember _______. [ ]
A. what your father said
B. what your father say
C. what does your father say
答案：A
（1）湖南省年人均水量约为2500m3，对照下表可知我省属于______ 缺水地区．
| 紧缺性程度 | 年人均水量/m3 |
| 轻度缺水 | 1700～3000 |
| 中度缺水 | 1000～1700 |
| 重度缺水 | 500～1000 |
| 极度缺水 | ＜500 |
①______；
②______．
（3）日常生活中可用______区分软水与硬水，可用______的方法降低水的硬度．