译林牛津版九年级下册英语课本Unit2 Task课后详细解答过程和答案
Task B部分详细解答过程和答案(1)September 7th,1930
(2)teacher
(3)hunger
(4)advantages
(5)new type
(6)20% more rice
(7)the USA
(8)rice production
(9)Father of Hybrid Rice
(10)better rice plants
(11)the problem of hunger
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