21. From the bark of the paper birch tree the Menomini crafted a canoe about twenty feet long and two feet wide, with small ribs and rails of cedar, which could carry four persons or eight hundred pounds of baggage so light that a person could easily portage it around impeding rapids. (A) baggage so light (B) baggage being so light (C) baggage, yet being so light (D) baggage, and so light (E) baggage yet was so light 答案是E,yet 在这里是做什么成分? 请问A为什么不对? |