标题: 确认一条GWD的答案 [打印本页] 作者: sandraqiuoffer 时间: 2017-9-21 06:14 标题: 确认一条GWD的答案 Dolphins lack vocal cords, nevertheless creating sounds: a complicated system of whistles, Squeaks, moans, trills, and clicks are produced by sphincter muscles inside the blowhole.
A. nevertheless creating sounds: a complicated system of whistles, squeaks, moans, trills, and clicks are produced by
B. nevertheless creating sounds: they produce a complicated system of whistles, squeaks, moans, trills, and clicks with
C. but they do create sounds, producing a complicated system of whistles, squeaks, moans, trills, and clicks with
D. but they do create sounds, a complicated system of whistles, squeaks, moans, trills, and clicks being produced
E. but nevertheless creating sounds: a complicated system of whistles, squeaks, moans, trills, and clicks produced by
这条题目我在 k m f 上面做答案显示C, 但是我查有些论坛答案显示B,我个人觉得C不对，因为 comma + ving 后面和前面在描述的东西必须是inseperable 的， 而前面和后面描述两个独立的事情。 请问一下有没有可以确认一下答案到底是什么呀。非常感谢!