【简答题】The big (1) (spenders) in R&D tend to produce certain types of product—things like (2) ______________ scientific instruments, medicines, high-tech weapons systems, navigation and safety devices for ai...
【简答题】The big (1) (spenders) in R&D tend to produce certain types of product—things like (2) ______________ scientific instruments, medicines, high-tech weapons systems, navigation and safety devices for ai...