不属于消费者市场细分的标准是()。
A、地理细分
B、最终用户
C、用户的购买状况
D、消费者购买时机
参考答案:B, C
—I didn’t hear you come in just now.
—That’s good. We tried ____any noise, for you were sleeping.
A.not make
B.not to make
C.to make
D.making
在101kPa时,0.5molCH4完全燃烧生成CO2和液态H2O放出495.2kJ的热量,写出该反应的热化学方程式。 .