问题描述：
This echo-location in bats is often compared with radar,the principle of which is similar.后面这...
This echo-location in bats is often compared with radar,the principle of which is similar.后面这个the principle of which is similar分析一下成分 还有of which的先行词是哪个
This echo-location in bats is often compared with radar,the principle of which is similar.后面这个the principle of which is similar分析一下成分 还有of which的先行词是哪个
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