【简答题】下图是某化合物的结构简式,据图回答: (1)此化合物的名称是________________。 (2)形成此类化合物酌基本单位是氨基酸,氨基酸的结构通式为________________。 (3)已知胰岛素是由51个氨基酸通过相同的过程形成的两条链构成的大分子,假定氨基酸的平均分子量为120,则胰岛素的分子量约为________________。 (4)图中④所示结构的名称是________,⑥所...
【单选题】We fogave his bad temper because we know that his son’s illness had put him under great____.
【单选题】We are getting tired of ______.
A.
that bad temper of him
C.
that bad temper of his
【单选题】We forgave his bad temper because we knew that his son's illness had put him under great ________. [ ]
【简答题】以系统标称电压为据, 交流 1000kV 及以上称为 。