I'm very , so I'm strong.[ ]
A. health
B. healthy
C. weak
D. sick
答案:B
--- Would you like to collect _____ with us in the park this Saturday?
--- Yes, I’d love to. Let’s make it clean.
A.water
B.stamps
C.trees
D.rubbish
物流系统管理人员在应用系统方法时应明确以下相互联系的观念,即()。
A.总成本法
B.避免次优化
C.得失比较分析法
D.必须是最高服务水平
E.必须追求最高利润