【判断题】During 1932–1949, Imperial Japanese Army established biological ware programs, such as Unit 731, that conducted unethical experiments using human subjects, comparable to the crimes against humanity...
【单选题】乘客用纸币购票需硬币找零时,先用( )中的硬币,( )硬币用完的情况下,用( )补充找零钱箱中的硬币进行找零。
C.
循环找零钱箱、 循环找零钱箱、 补充找零钱箱