保证安全的技术措施有哪些?
参考答案:
保证安全的技术措施有:
1、停电
2、验电
3、接地
4、装设标示牌和装设遮拦。
如果2x2a-b-1-3y3a+2b-16=9是一个二元一次方程,那么a·b=( )。
In relation to the constitutional documents of a company:
(b) Explain the effect of the memorandum of association and articles of association, and the relationship between them. (4 marks)