【简答题】46__________ A.The features of the exams in the Middle Ages. B.How did the forms of exams evolve. C.How to perform. well in both spoken and written exams. D.The different exams designed for people of ...
【单选题】A foundry produces circular utility access hatches (manhole covers). If 120 covers are produced in a 10-hour shift, the productivity of the line is