简述我国的基本经济制度。结合材料请你谈谈对这一经济制度的认识。
“比a的2倍小3的数等于a的3倍”可列方程表示为:____.
根据句意及首字母提示完成单词(1)I want to have two days o____ (2)Sally can h____ hear the traffic in the streets.(3)I have told her the w ____ story.(4)From the t____ of the mountain I can see the sea.(5)We took a cable car to see the v ____ of the countryside.
日本传统民居,多用质地较轻的建筑材料建筑的主要原因是( )
下列各句中,标点符号使用正确的一句是( )