Testing. According to the query of the examination network, because there are many graphics and shapes combined with circles, circles are almost one of the final questions in the senior high school entrance examination, so they are an auxiliary round examination. Dalian is a prefecture-level city under the jurisdiction of Liaoning Province, a sub-provincial city, a city with separate plans, a mega-city, and an important central city, port and scenic tourist city along the northern coast of China as determined by the State Council.