标题: [语法] OG13：The intricate structure of the compound... [打印本页] 作者: myice 时间: 2012-8-20 17:18 标题: OG13：The intricate structure of the compound...
The intricate structure of the compound insect eye, having hundreds of miniature eves called ommatidia, help explain whv scientists have assumed that it evolved independently of the vertebrate eye. A.having hundreds of miniature eyes called ommatidia, help explain why scientists have assumed that it B.having hundreds of miniature eyes that are called ommatidia, helps explain why scientists have assumed that they C.with its hundreds of miniature eyes that are called ommatidia, helps explain scientists' assuming that they D.with its hundreds of miniature eyes called ommatidia, help explain scientists' assuming that it E.with its hundreds of miniature eyes called ommatidia, helps explain why scientists have assumed that it
谢谢楼主啦。
