FIGS. 20A to 20F are explanation diagrams of a memory, FIG. 20A is a side view showing a state that a memory is supported by an accommodation body, FIG. 20B is a side view showing a state that a memory is removed from an accommodation body, FIG. 20C is an explanation diagram showing a state that a memory is supported by an accommodation body, which is looked obliquely from a front side, FIG. 20D i