问题
填空题
可以利用声音来传递__________和___________。
答案
信息；能量
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可以利用声音来传递__________和___________。
信息；能量
| 完型填空。 | ||||
| Mary is a little fatter than she wants to 1___________. She 2___________ to lose some weight (减肥). So she is on diet (节食). She tries not to eat too 3___________. She eats very few sweets 4___________ it will make her 5___________. She does exercise every 6___________. She swims very often, and she runs about two kilometres a day. Now she is very happy because she is thinner than 7___________. Mary's sister is young and thin. She does 8___________ every day, too. She doesn't 9___________ much meat. But she eats a lot of fruit and vegetables because she thinks they are good 10___________ her health.
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