Identify and describe the two technological devices helped turn the tide in the Royal Air Force's favor

According to the qianlong emperor, why was china not interested in importing anything else?

Which best describes colonial shipping activity in the port of charles town

When there are advances in technology, such as the personal computer, how might business productivity change? a) productivity is separate from technological advances so there is no impact. the new technology can replace outdated, less efficient, machinery. o) the businesses' products will no longer be demanded. d) manufactured items will be made elsewhere.