内部中断的优先权总是高于外部中断。()
参考答案:错
在降低库存的措施中,()的基本策略是尽量使生产和需求相吻合。
A.降低周转库存
B.降低在途库存
C.降低调节库存
D.降低安全库存
The children ran away________all directions the moment they caught sight of their teacher coming near. [ ]
A. in
B. to
C. from
D. off