资讯

BBC1 年
The mole and concentration of solutions The mole - BBC
The gram formula mass of a substance is known as the mass of one mole. The mass, number of moles, concentration or volume of a substance can be calculated easily if you learn two formula triangles.
NPR1 年
A sniffer dog helps rediscover a rare mole : NPR
The De Winton's golden mole was last spotted in 1936. But with the help of a mole-sniffing dog and new environmental DNA analysis, researchers are taking it off the most wanted lost species list.
CNN1 年
De Winton’s golden mole rediscovered after nearly 100 years - CNN
A blind mole that glides through sand has been spotted in South Africa, 87 years after wildlife experts feared it had gone extinct. De Winton’s golden mole has been rediscovered in South Africa, ...