A、<span>p<span style="FONT-FAMILY: \'宋体\'; FONT-SIZE: 12pt; mso-spacerun: \'yes\'"><</span>
<!--EndFragment--></span><span>p<sub>0</sub></span>
B、<span>p</span><span style="FONT-FAMILY: \'宋体\'; FONT-SIZE: 12pt; mso-spacerun: \'yes\'"><span style="FONT-FAMILY: \'宋体\'; FONT-SIZE: 12pt; mso-spacerun: \'yes\'">></span>
<!--EndFragment--></span><span>p<sub>0</sub></span>
C、<span>p</span><span style="FONT-FAMILY: \'宋体\'; FONT-SIZE: 12pt; mso-spacerun: \'yes\'">=</span><span>p<sub>0</sub></span>
D、<span>p</span><span style="FONT-FAMILY: \'宋体\'; FONT-SIZE: 12pt; mso-spacerun: \'yes\'"><span style="FONT-FAMILY: \'宋体\'; FONT-SIZE: 12pt; mso-spacerun: \'yes\'"><u><</u></span></span><span>p<sub>0</sub></span>
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