—_________________
—They're under the chair.
A:Where is your baseball?
B:Where are your baseball?
C:Where are your keys?
D:Where is your keys.?
有如图A~F六种仪器:
①实验室配制一定物质的量浓度的盐酸,需用质量分数为37%的浓盐酸4.5mL.取用4.5mL盐酸时,需要用到如图仪器中的F和 ____(填编号)
②下列实验操作中用到仪器E的是 ____ (填编号)
a.分离水和CCl4的混合物 b.分离水和酒精的混合物 c.分离水和泥砂的混合物.
朱熹说:“孔子所谓‘克己复礼’,《中庸》所谓‘致中和、尊德性、道问学’,《大学》所谓‘明明德’……圣贤千言万语,只是教人明天理、灭人欲。”朱熹旨在强调( )