I am an Australian and US citizen. Would I be able to apply for a Chinese work visa from the UK?

I hold dual citizenship for the US and Australia. I am currently living in the United States and I am applying for jobs to teach in China. However, I would like to travel to the UK two weeks time. I was wondering if it would be possible for me to complete the visa application process for China while I am in the UK or if I would need to complete it in the United States? Thank you for your time.