1. The engineering experimental class (Turing class of Zhu Kezhen College) has the lowest scores of 686 and 349, and the requirements for examination are physics.

2. The lowest scores and rankings of social science experimental classes (humanities and social sciences experimental classes of Zhu Kezhen College) are 683 and 49 1, respectively, and there are no restrictions on the requirements of the selected subjects.

3. The lowest score and ranking of the medical experimental class (Ba Denian Medical Class of Zhu Kezhen College) are 68 1 and 649, respectively, and the required subjects are physics and chemistry (two required subjects).