I live in a nice new building in Beijing. It is very tall. It has eighteen floors. There are about eighty families in the building. That is to say (也就是说), about two hundred and forty people live in the building.

    My home is on the twelfth floor. We have two bedrooms and a living room. They are big and clean. There are a lot of big trees and beautiful flowers around our building. I like looking out of the window in my room. I can see cars and buses running in the street. I can see people walking in the street, too. They look so small! I can also see a lot of tall buildings. How beautiful Beijing is! I am happy to live in this nice, new and tall building.

 推理是学习化学常用的思维方法，根据溶液具有均一性的特点来推理，蔗糖溶液应该是（　　）

据史书记载：明代内阁大学士通过“面对”、“密揭”、“票拟”等形式参与中枢决策，因而阁权在国家权力运作机制中，体现出一定程度的决策权。当这种决策权得到皇权支持和批准后，就可以影响甚至左右政局的发展。这种现象（    ）