How much does a laboratory mouse cost?
Lab mice for daily use cost 25 yuan each, and buying 160 of them only costs 4,000 yuan. But the price of a nude experimental mouse is 3,000 yuan. Ev...
black hamster
tags Lab mice for daily use cost 25 yuan each, and buying 160 of them only costs 4,000 yuan. But the price of a nude experimental mouse is 3,000 yuan. Ev...