Unit 2 Lesson 9-Lesson 12 2023-2024学年冀教版九年级全一册周周练（含解析）

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Unit 2 Lesson 9~ Lesson 12——2023-2024学年冀教版九年级全一册周周练
考查范围：Unit 2 Lesson 9~ Lesson 12
一、单选题
1.Yuan Longping was a world-famous scientist. Because of his achievements, rice ______ has been increased greatly.
A.population B.contribution C.production D.introduction
2.—Could you please _____ some ideas...