题目

What are the speakers mainly talking about?A.A library. B.A writer. C.A book. 答案：【答案】C【解析】【原文】W: That famous science fiction writer Isaac Simon’s new book is coming out in July.M: We probably won’t be able to find a library copy until September.下表内容是某著名水利工程的相关说明。这项水利工程是部位主要作用鱼嘴将岷江分为内、外二江，外江主要用于排洪，内江主要用于引水灌溉飞沙堰当内江水量超过宝瓶口上限时，多余水量从飞沙堰自行溢出，排入氓江，起到泄洪减灾作用；排出内江水中挟带的沙石，确保内江通畅宝瓶口是控制内江进水的咽喉。内江水流入宝瓶口后，经过不断分闸调节，形成灌溉成都平原的自流灌溉渠系A.都江堰B.灵渠C.大运河D.江南河