The focus of the second exam is. According to the outline of postgraduate entrance examination, the number two examines 144 test site, excluding vector algebra and spatial analytic geometry, triple integral, curve integral, surface integral and infinite series. According to the annual exam questions, Math II only covers 82% and 5% of the exam syllabus, so you should know how to grasp the key points when reviewing. Mathematics II focuses on curvature, arc length and centroid. Pay attention when reviewing.