单选题 Scientists created a (brainy), four-legged robot (resemble) a starfish that can sense (damage) to its body, and (think up) a way to recover.

【正确答案】 B

【答案解析】将resemble改为resembling，动名词短语作定语修饰four-legged robot。如果不改的话，本句会有两个谓语动词(另一个是created)，这样会有动词冲突。starfish海星。