【how many digits are in a credit card number 】 The small box that Cheng Fighting took out from the safe was for rapid doping detection. He opened the box and took out something like an electronic thermometer from inside. After pressing the button on it, the detector lighted up. A small white light indicates normal operation. 。

few minutes later, the medicinal liquid in the pot turned from jet black to dark green, but in the next instant the color suddenly changed back to emerald green, and then there was no further change.

I found an empty small glass bottle, poured the cooled medicinal liquid into it, and then directly mixed some water into the pot to dilute the medicinal liquid remaining in the pot.