【单选题】Although there had been an astonishing variety of small cameras developed in the 1880s, it was not until George Eastman introduced the Kodak in 1888 that the mass appeal of photography seized America ...
A.
It marked the beginning of manufacturing small cameras
B.
It met the need of photographers in America and Europe
C.
It made picture-taking suddenly popular among ordinary people
D.
It made the work of professionals more enjoyable
【多选题】There are essential components in a spray dryer, they are .
【单选题】The FDA approved the use of Remesivir on patient 1, although there had been no trials.
【简答题】翻译下列句子: 1.Logistics is the process of planning, implementing, and controlling the effective and efficient flow of goods and services from the point of origin to the point of consumption. 2.Outbound lo...