题目内容
设a>b>c>0，则2a2+
+
-10ac+25c2的最小值是
2021-07-21
A.2
B.4
C.2
D.5
试卷相关题目
SQL Error: select id,body,options from ***_enewstiku_ where sourceid='15532' and id < 2638731 and id<>'2638731' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='15532' and id > 2638731 and id<>'2638731' order by id asc limit 5