党的“十八大”提出要到2020年全面建成小康社会。随着中国特色社会主义事业的深入发展，小康社会的内涵和意义不断地得到丰富和发展。这体现了（
有关①100ml 0.1 mol/LNaHCO3、②100ml 0.1mol/LNa2CO3两种溶液的叙述不正确的是A.溶液中水电离出的H+个数：②>① B.溶液中阴离子的物质的量浓度之和:②&g
My mother a bed in the sitting-room for my cousins from the countryside. A. brought up B. took up C. made up
氮元素可形成很多重要的化合物，其中叠氮化钠（NaN3）被广泛应用于汽车安全气囊．叠氮化钠的制取方法是：①金属钠与液态氨反应得NaNH2②NaNH2与N2O按
One of the most important lessons I learned from my father took place in our driveway when I was in elementary school. We used to play basketball every day, and he ____36___ that I needed to learn h
If you don’t know how to use an English word, the easiest way is to _________ a dictionary. A．refer B．inquire C．indicate D．consult
如果函数f(x)=(x+a)3对任意x∈R都有f(1+x)=-f(1-x)，试求f(2)+f(-2)的值.
下图所示的基本实验操作中错误的是（ ） A. 倾倒液体 B. 检查气密性 C. 收集二氧化碳气体 D. 滴加少量液体
