A.by 5 percent
句意:这个城市的人口已经增加了百分之五.
increase by + 百分比/倍数,"增加了..."
increase to + 数字."增加到..."
My salary has been increased to one thousand yuan.
我的薪金增加到1000元.
来自《简明英汉词典》
A.by 5 percent
句意:这个城市的人口已经增加了百分之五.
increase by + 百分比/倍数,"增加了..."
increase to + 数字."增加到..."
My salary has been increased to one thousand yuan.
我的薪金增加到1000元.
来自《简明英汉词典》