Don' t touch the laboratory equipment and chemicals after entering the physical and chemical laboratories， in order to avoid personal injuries.进入理化实验室，不准触摸化验仪器及化学品，以免造成人身伤害。
Don' t touch the laboratory equipment and chemicals after entering the physical and chemical laboratories， in order to avoid personal injuries.进入理化实验室，不准触摸化验仪器及化学品，以免造成人身伤害。
A.正确
B.错误
正确答案：正确