列举为巩固新中国而进行的斗争。
稳定物价、土地改革、抗美援朝
The result was good enough for Liu Xiang to win the ________, but far off his former world record and personal best of 12.88 seconds.
A power B advantage C title D item
油滴的燃烧包括（）几个过程。
A、预热
B、蒸发
C、扩散
D、燃烧
