地铁火灾扑救中，为减少前线人员体力消耗，一般实施接力疏散救人方法。（）
参考答案：对
Mr. Smith likes traveling _______; but his wife enjoys _______.
A．by train; taking a taxi
B．on train; by taxi
C．by train; by taxi
D．on train; taking a taxi
下列作业调度算法中，______对于执行时间较短的等待时间较长的作业较为有利。
A．FCFS
B．SJF
C．HRN
D．优先级调度
