A、<span style="font-size: 16px; font-family: 'Times New Roman', serif;">a</span><span style="font-size: 16px; font-family: 宋体;">大于</span><span style="font-size: 16px; font-family: 'Times New Roman', serif;">b</span>
B、<span style="font-size: 16px; font-family: 'Times New Roman', serif;">a</span><span style="font-size: 16px; font-family: 宋体;">小于</span><span style="font-size: 16px; font-family: 'Times New Roman', serif;">b</span>
C、<span style="font-family: 'Times New Roman', serif;">1</span>
D、<span style="font-family: 宋体;">输出语句有错</span>