能提供细菌生长所需辅酶的培养基成分是()
A.蛋白胨
B.血液
C.糖类
D.牛肉膏
E.无机盐类
参考答案:B
Come down to Huaxing clothes store and see _____ yourself.[ ]
A. in
B. for
C. on
D. at
秦穆公用五张羊皮换百里溪,人们都称百里溪什么?