题目

为了支援四川芦山灾后重建，海外华人华侨捐赠的物资将陆续运抵我国。若一艘满载赈灾物资的货轮从海上进入长江后，轮船所受的浮力    （     ） A．不变             B．变大              C．变小              D．无法确定 答案：A—What has a long tail?—________________.A. A pig has a long tailB. A rabbit has a long tailC. A cat has a long tail