临床上活动矫治器所使用的改良式箭头卡环的直径是
A.0.5mmB.0.8mmC.0.9mmD.1.0mmE.1.2mm
参考答案:B
In the context of company law, explain what is meant by an ‘unfair preference’ by an insolvent company and summarise the law relating to unfair preference. (10 marks)
温度传感器应垂直悬挂,距顶板(顶梁)不得大于(),距巷壁不得小于200mm,并应安装维护方便,不影响行人和行车。
A、100mm
B、200mm
C、300mm
D、400mm