当皮肤被硫酸腐蚀时，应立即在受伤部位加碱性溶液，以中和硫酸。
参考答案：错
He always ______ his friends about everything. In fact , he has no thoughts of his own.
A．agrees with
B．plays with
C．deals with
D．talks with
下列哪一种不是常用的介质桶液位计（）。
A、压力式
B、超声波式
C、浮标式
D、电阻式
