Turning around, let's talk about Li Su at this moment, she is listening intently to the little mantis telling how to distinguish between real and fake gold and silver.

"To distinguish between authenticity and falsehood, we first look at the color. The little mantis pointed to the two gold rings that had been bothering Li Su before, "Tell me first, what is the difference between them?"

Li Su looked at it carefully, then pointed to the ring and said, "This color looks like it's yellow, and this color looks a little blue." ”

"That's right. "That's because the yellow one is eighty percent gold, and the blue one is seventy percent gold." ”

"Huh-?" Li Su opened his mouth wide.

"I don't understand. The little praying mantis laughed twice, "Teach you the folk formulas of arguing gold: seven green, eight yellow, nine five red, yellow and white with gray and half gold." ”

And there is also a formula for arguing silver, which is: seven black, eight red, nine with white, and nine or five percent of the color is restored. ”

"Oh," Li Su's eyes widened again.

Seeing this, the little mantis was triumphant, "Of course, it is impossible to argue the golden light to see the color." The little mantis pointed to another gold ring in the pile of ornaments and said, "You see it's yellow and clear, it seems to be in good condition, but" The little mantis waved its forearm, and the gold ring was instantly broken, "But you see, it's copper inside, but it's just plated with a layer of gold dust on the outside." ”

It's pretty intuitive. Li Su took the broken gold ring and looked at it, "Those jewelry, I can't cut each one with a knife, right?"

"That's nature, so in addition to looking at the color, there are also weights, hardness, listening to the rhyme, and grinding on the stone."

It's complicated. After half a sound, Li Su heard it in the clouds. But in order not to be deceived in the future, Li Su still listened patiently, and used the existing gold and silver jewelry in his hand to conduct experiments.

After the little mantis finished explaining, he returned to Jianlan Ye and lay on his stomach, and then looked at Li Su in a daze.

Alas, you cannot live if you do your own evil. The little mantis sighed. I really dug a hole and buried myself.

Thinking back to the full moon night last month, the little mantis really regretted not being at the beginning. I thought that the life and death theory of pets and owners was nonsense, but it turned out that everything was true.

Touching his chest, the little mantis remembered the throbbing last night, and it almost killed it.

The little mantis took a deep breath: it seems that this girl must be dealt with first, no matter what.

"Don't worry, don't put those things in place, I'll teach you how to take the elixir correctly. ”

Do you want to teach me now?" Li Su raised his eyes and smiled, "I'm not in the mood now, I'll learn again tomorrow." ”

"You," the little mantis tried to calm down, "then talk about the poison you have, I want to think of a way to help you get rid of it." ”

Well, Li Su thought for a while, "I don't know what kind of poison it is, but I heard that when the poison is released, it will die of rotten stomach." ”

The little mantis gritted its teeth, "Didn't you say that you have to take the antidote every three months? Isn't it almost three months since you last took the antidote? You didn't ask, when can you get the antidote?"

"Then I don't know. Li Su blinked, "The person who assigned me the task hasn't contacted me for more than a month. "Honestly, I miss him a lot.

The little praying mantis couldn't stand it anymore. I'm going to have to be a brain-dead to become this guy's monster pet.

Seeing that the little mantis was no longer speechless, Li Su felt that he also had a certain understanding of gold and silver, so he put all his belongings into the ring again, and then began to think about how to make these things clear. After thinking about it, Li Su didn't think of any good way.

Forget it, let's talk about it later, anyway, I'm not in a hurry to spend money now.

Li Su trembled and thought of another thing, so he laughed and jumped out of bed. "Ruyan, do me a favor. ”

"Huh?"

"Help me get my revenge. Li Su grinned, "That old guy of Yuyangzi, I'm still angry when I think about it." ”

"What, you want to kill him now?" the little mantis sneered, "Then you were asked to do it last night, why didn't you do it?"

Li Su shook his head, "How could I want to kill him, I just want to give him another bitter taste." ”

You didn't give him enough trouble last night?The little mantis looked at Li Su incredulously, "Is there any part of his body that you haven't tricked up?"

Li Su's face was embarrassed, "Don't say that." This time, they just wanted him to have a dream. ”

The little praying mantis suddenly felt so sorry for Yuyangzi.