此题答案为C 吗?-->happyfish0517转移

lydia887

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lydia887

13: 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 being produced

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

claudius77

C: but they do create sounds, producing a complicated system of whistles, squeaks, moans, trills, and clicks being produced

这里producing 和produced意思上重复了,而且也不通.

我觉得是E, 冒号之后合理的解释了sounds.

happyfish0517

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