this is a ______ argument.

matlab?Input argument "a" is undefined. 逻辑题：Determine whether each of this argument is valid . This area is protected=This is a _____ ______. drive this argument This is a highly ______ elextronic compass. what is this?______ a chair. This is a ______ gold necklace Your argument is ____to criticism.A vulnerable B subject matlab运行结果Input argument "A" is undefined. This is a ruler.______ is black.应填什么 This is my monther .______(her) is a nurse The sum and substance of this argument is.为什么用is啊