约 2 个结果
Emergency vehicle lighting - Wikipedia
网页13 小时之前 — Red and blue emergency lights on a fire engine in Canberra, Australia. Emergency vehicle lighting, also known as simply emergency lighting or emergency lights, is a type of vehicle lighting used to visually announce a vehicle's presence to other road …
Animal cognition - Wikipedia
网页13 小时之前 — A crab-eating macaque using a stone tool to crack open a nut Experiments like the string-pulling task performed here by a Carib grackle provide insights into animal …
