①我国尊重少数民族的宗教信仰 ②国家巩固平等团结共同繁荣的民族关系 ③民族区域政治制度是我国的根本政治制度 ④少数民族地区的发展离不开各族人民的帮助
A:①②
B:②③
C:①④
D:②④
如图是小梅配制100g溶质质量分数为12%的NaCl溶液的实验操作示意图:
(1)图中的玻璃仪器分别是广口瓶、量筒、烧杯和____ .
(2)指出图中的一处错误操作:____ .
(3)配制时应选择____ mL(10mL或50mL或100mL)的量筒量取所需要的水.
(4)用图示的序号表示配制溶液的操作顺序____ .
根据括号内的汉语提示,完成句子(1)Women teachers are usually more careful and more____ (有耐心的)with the pupils.(2)Since you've finished your work,why not consider ____ (参观)the park with your friends?(3)Early in the____ ( 二十) century, two famous scientists developed their personal ideas about dreams.(4)In order to search for the missing passengers in the MH370, two____ (军人)died.(5)The film reminded me of the day when I was____ (照顾)care of in the village.(6)Drive____ (径直)on, and you’ll find the museum on your left.