单项选择题
用失去部分结晶水的HCO.2HO基准物质标定NaOH的浓度是，所得的NaOH溶液的浓度与真实的浓度相比 ( ) A. 偏高； B. 偏低； C. 不影响； D. 无法确定
点击查看答案&解析
相关考题
-
判断题
必须要具备非常优秀的编程能力才能学懂SDN( ) -
单项选择题
An organisation recognising the ageing population and offering a 'Seniors' discount for older customers is most likely to be responding to sociocultural forces.
A．对
B．错 -
单项选择题
Termination of employment refers to the __________ of an employee’s work with a company. A. beginning B. continuation C. end
