选择题1. Around the time of their cond birthday, children begin to produce ____ utterances.B.two-word2. Which side(s) of muscles of ours does our left brain control?C.right3. The design features of hum
C#数字类型输出字符串时保留指定⼩数位数的⽅法1、使⽤占位符:1)float f = 321.12345F;f.ToString("0.00");这样做⽆论f是不是整数,都将加上2位⼩数。2)float f = 321.12345F;f.ToString(".##");这样做最多显⽰2位⼩数占位符的定义如下:(0)Digit placeholder. Display a digit or a ze