Why are you crying?[ ]

A. Because it's time for bed.

B. Because it's cold outside.

C. Because I'm lost!

按照我国《化妆品卫生规范》的规定，测定化妆品菌落总数时，为了便于区别化妆品中的颗粒和菌落，可在培养基中加入（）。

A.DMEM

B.SDS

C.DfT

D.TTC

E.卵磷脂