题目

关于物体所受重力的方向，下列表示正确的是 答案：C 选词填空 product/produce/production (1)His novel is the ________ of ten years of labour． (2)The field ________ is shipped to other parts of the country． (3)Some people don’t believe that advertising can increase ________． (4)Farm ________ are the chief export things of the country． (5)This book is one of the writer’s latest ________．