标题: GWD一道语法题目，选项之间不是很不明白 求解答！！！谢谢大家！共同进步啊~~ [打印本页] 作者: joanna5200 时间: 2014-2-19 14:34 标题: GWD一道语法题目，选项之间不是很不明白 求解答！！！谢谢大家！共同进步啊~~ 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.
Anevertheless creating sounds: a complicated system of whistles, squeaks, moans, trills, and clicks are produced by
Bnevertheless creating sounds: they produce a complicated system of whistles, squeaks, moans, trills, and clicks with
Cbut they do create sounds, producing a complicated system of whistles, squeaks, moans, trills, and clicks with
Dbut they do create sounds, a complicated system of whistles, squeaks, moans, trills, and clicks being produced
Ebut nevertheless creating sounds: a complicated system of whistles, squeaks, moans, trills, and clicks produced by
答案：C