把10克盐放进200克水中,这时盐和盐水质量的比是1:20.______.(判断对错)
10:(10+200)=1:21,
答:盐和盐水质量的比是1:21;
故答案为:×.
轴对称图形的对称轴是一条______,P(-3,2)关于x轴对称的点P′的坐标是______,再向左平移2个单位得点P″的坐标是______.
Describe how senior management and the statutory internal bodies of a company limited by shares promote ffective corporate governance. 10 marks)