Difficult. According to the news published on the Internet of Senior Three, in February, 2023, 14, Japan's mathematical proposition was still difficult. On the test paper of 150, the average score of science is 64.04, and that of liberal arts is even lower, only 4 1.4. Hefei generally refers to Hefei city. Hefei, referred to as "Lu" or "He", was called Luzhou, Luyang and Hefei in ancient times. It is a prefecture-level city, provincial capital and I-type metropolis under the jurisdiction of Anhui Province, located between 30 57 ′-32 32 ′ north latitude and 65 438+06 465 438+0 ′ east longitude.