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高中英语人教版高二上06
2015-05-04来源:和谐英语
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[06:24.63]A new type of lemon tree for cold countries has been developed by the agricultural research service of Liaoning province,
[06:33.27]where research has been going on for seven years.
[06:38.45]A new lemon tree will be growing cold parts of China.
[06:43.59]Normal lemon trees
[06:46.65]are killed when the temperature falls below 0 degree centigrade.
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