长沙精神是什么?
参考答案:
心忧天下、敢为人先
柴油的燃烧性能用什么作为衡量指标()
A、辛烷值
B、品度
C、十六烷值
This passage puzzled me so much that I stopped for a few seconds to _____.
A.make it up
B.make it out
C.make it for
D.make it over