A.基于BlockingQueue的数据接口来存储
B.使用volatile修饰符
C.使用ThreadLocal方式
D.synchronized方式
Before any machinery is put in operation,you should ______.
A.ventilate all compartments,see that the machinery is clean and there are no obstructions
B.just turn the key and start up
C.take for granted that there are no fuel leaks
D.assume there are no volatile fumes in the engine space