Hebei Tangshan 2013 College Entrance Examination Physics Second Round Review of Multiple-choice Topic Training 15: 1. Regarding the sun, the following statement is correct () A. The energy continuously released by the sun comes from its internal chemical reactions. The sun is in the center of the galaxy The surface temperature of the sun is about several thousand degrees and emits white light. The current sun is classified as a giant star according to the type of star, and is in its birth period according to the evolution of the star. As shown in the figure, for the distribution of magnetic induction lines used to bind the magnetic field of the atom, with point O (white point in the figure) as the origin of the coordinate, the change in the magnetic induction intensity B along the positive direction of the Z axis is most likely to be [ ]
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