【判断题】产业的一般分类方法有关联式分类法、三次产业分类法、两大部类分类法、农轻重分类法、生产要素分类法。
【单选题】Frank is not ______ tall ______ his brother.
【简答题】将下列词语分别填入句子中: flourish,crack,ignorant,indifferent,personnel,investigate,inhabitant 1. American Indians were the earliest ______s of America. 2. Rock and roll ______ed in the 1950s in the West. 3. I wa...
【简答题】What was the first inhabitant inNew Zealand?
【单选题】静定系统轮压计算中,起重机不旋转部分的自重载荷为:
【单选题】别号是名和字以外的称号,古代著名诗人李白的别号是( )。
【单选题】某化合物在紫外光区204 nm处有一弱吸收带,在红外光谱3300~2500 cm-1有宽而强的吸收峰,1710 cm-1处有吸收峰。该化合物可能是
【单选题】某化合物在紫外光区204nm处有一弱吸收带,3400~2400cm-1有宽而强的吸收,1710cm-1处也有吸收,则该化合物可能是( )