题型:判断题 Your iPad is quite nice. Where did you buy ______? I want to buy ______, too. A.one; oneB.it; itC.it; oneD.one; it 查看答案
题型:判断题 物质的性质决定物质的用途,下列说法不正确的是( )A.氧气可用于金属切割,因为氧气能支持燃烧B.洗涤剂常用来洗涤油污,因为洗涤剂有乳化功能C.“银粉漆”(铝粉)可涂在铁栏杆上防锈,因为铝的化学性质稳定D.熟石灰可用来改良酸性土壤,因为熟石灰显碱性 查看答案