问题
选择题
Water is very important _____ all living things. We must _____ every drop of water.[ ]
A. for; leave
B. for; keep
C. to; save
D. to; show
答案
答案：C
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Water is very important _____ all living things. We must _____ every drop of water.[ ]
A. for; leave
B. for; keep
C. to; save
D. to; show
答案：C
下表所示的是某电冰箱的主要技术参数：
| 使用环境温度/℃ | 额定电压/V | 额定功率/W | 耗电量/（kW•h/24h） |
| 10～38 | 220 | 120 | 1.1 |