长期边际成本曲线LMC不是短期边际成本曲线SMC的包络线。
参考答案：对
目视板上过时信息未及时更新（）。
A、素养
B、整理
C、整顿
D、清洁
E、清扫
Which of the following signs or symptoms would lead the nurse to suspect that a 10-year-old child is experiencing early salicylate toxicity（）
A. Chest pain.
B. Pink-colored urine.
C. Slowed pulse rate.
D. Dizziness.
