问题
判断题
当充电指示灯亮时，说明蓄电池正在被充电。
答案
参考答案：错
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当充电指示灯亮时，说明蓄电池正在被充电。
参考答案：错
根据短文内容，用方框中所给单词的适当形式填空，每词限用一次。
will feel better about yourself. It's best to exercise 1 each week. Twenty minutes each time is 2 . There are many 3 to exercise. You can walk, run, play sports, or swim. Many people go to 4 places to exercise. They are 5 "fitess centres." Exercise can be fun. Friends can exercise together at a fitness centre. Or, they can play sports together. How do you exercise? | |
| 1. _____ 2. _____ 3. _____ 4. _____ 5. _____ |