always read the ___on the bottle carefully and take the right amount of medicine

题目

always read the ___on the bottle carefully and take the right amount of medicine
explanations
instructions
descriptions
introductions

答案

B instructions
要仔细阅读名字上的指示（说明）,吃正确量的药
像什么瓶子上,包装上的说明,都是用instructions