A:A物质的组成元素中含有a、b、c
B:B物质的合成需要消耗A物质
C:除a、b、c以外的元素称为微量元素
D:细胞内的大部分酶属于B
Lisa is____ ____ ____any other student in my class.
Xiao Li was supposed __________ her homework before nine o'clock. But she couldn't.