The old man lives in that village house by himself, "by himself" probably means
造成下图中两地区耕地类型不同的主要因素是( )
现有仪器: 烧杯、试管、广口瓶、铁架台、集气瓶、止水夹、酒精灯、玻璃片、 燃烧匙、带导气管的橡皮塞,从缺少仪器的角度考虑,下列实验不能进行的是( )
—Jiff, is it your computer game?
—_____. It's Linda's