<span style="color: rgb(43, 43, 43); font-family: "Helvetica Neue", Helvetica, "PingFang SC", "Microsoft YaHei", "Source Han Sans SC", "Noto Sans CJK SC", "WenQuanYi Micro Hei", sans-serif; font-size: 12px; white-space: pre-wrap;">AMC学生用书B</span><font color="#2b2b2b" face="Helvetica Neue, Helvetica, PingFang SC, Microsoft YaHei, Source Han Sans SC, Noto Sans CJK SC, WenQuanYi Micro Hei, sans-serif"><span style="font-size: 12px; white-space-collapse: preserve;">等级</span></font>