一级理论和二级理论的区别

1997年周六9点档播出的连续剧《我们的勇气～未满都市》In terms of temperature, There is a big difference between the temperature shown by the thermometer on the oven I use and the temperature provided by the machine. The difference is about 10 degrees, but since there is no third-party thermometer to verify it, it is not clear which one is not allowed. For the time being, trust AnchorChef's temperature is more accurate. After all, there is no problem with the food made. The temperature measurement range of the oven is wide, and there may be some deviation in the low temperature part. The temperature retention ability is not bad, and it can be seen that the temperature has been fluctuating within 0.5 degrees.Similarly, there are other plants whose ancestors were clearly insect-borne plants, but they slowly began to try to use the wind to spread pollen. They are becoming more and more independent of petals and nectaries, and these structures necessary for nectar production are becoming more and more irrelevant and even useless. Instead, some structures used to attract Russian (the wind god in ancient Greek mythology) slowly appeared on them, such as spikes of inflorescences on male flowers, allowing winds from all directions to take away pollen. Stamens of gramineous plants no longer hide in corollas like caves, but have long and thin ends like grains, swaying freely in the wind. At the same time, the pistils of these plants are also actively adapting to new pollination methods, and they have given creative answers to the question of how to successfully capture pollen in the air. For example, hazel trees and sanguisorba trees have grown luxuriant red stigma. These bright stigma are like dexterous tentacles, which can immediately capture pollen blown by them.而且让郭寒郁闷的是，这些订阅都是他原有的读者贡献的，新加入的读者寥寥无几。The destination of this trip has arrived. What are you waiting for? Do you also try?板栗听了一怔：这个时候，金二来有什么事？便跟爹娘打了招呼，往前面偏殿相见。