如图表示细胞内四种有机物的组成,请依据主要功能分析回答: (1)A是指 ;E在动物肝细胞中是指 ,在植物块茎细胞中主要是指 . (2)F是指 ;除此之外,脂质还包括 和 . (3)C是指 ;若组成蛋白质的氨基酸的平均分子量是130,那么一个由4条肽链共280个氨基酸所组成的蛋白质其分子量是 . (4)D是指 ,它是由一分子 、一分子 12、Due to the fact ________ the people
of the town were of the town were given no warning of the coming storm , many
people were seriously injured .
A. what
B.
that
C.
when
D. why