Do you always understand the instructions on a bottle of medicine? Here's one for John. John is twelve years old. He had a bad cold and coughed(咳嗽) day and night. He went to see a doctor and was given some cough medicine. Please read the following instructions and if you can understand them.
Cough Medicine:
The medicine is for a person with a cough. Shake it well before use.
Take it three times each day before meals or before sleep.
Dose (药量):
Age: over 14 2 teaspoonfuls
8~13 1 teaspoonful
4~7 1/2 teaspoonful
Dot fit for children below the age of three or old persons with heart trouble. Put it in a cold place. Use it before December 1st, 2004. |
，则下列不等式正确的是（ ）
