56. Architects and stonemasons, huge palace and temple clusters were built by the Maya without benefit of the wheel or animal transport. (A) huge palace and temple clusters were built by the Maya without benefit of the wheel or animal transport (B) without the benefits of animal transport or the wheel, huge palace and temple clusters were built by the Maya (C) the Maya built huge palace and temple clusters without the benefit of animal transport or the wheel (D) there were built, without the benefit of the wheel or animal transport, ???huge palace and temple clusters by the Maya (E) were the Maya who, without the benefit of the wheel or animal transport, ???built huge palace and temple clusters
画线部分是不是引起修饰不确定,夹心??? 大家能说说夹心的简单情况吗
谢谢大家
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