单选题 The seating of musicians in an orchestra is arranged ______ to produce the desired blend of sounds from the various musical sections.
【正确答案】 D
【答案解析】[解析] 句意:管弦乐队中音乐家们的座位是由乐队指挥安排的,为使各种乐器的声音相互融合,产生出理想的混合乐。“is arranged”是被动语态,加by后接动作的发出者。