As is known to us all travels much faster than .A. lights; soundsB. light; soundC. sound;

问题补充：

As is known to us all,travels much faster than .

A. lights; sounds

B. light; sound

C. sound; light

D. sounds; lights

答案：

A. lights; sounds

(答案→)B. light; sound

C. sound; light

D. sounds; lights

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