根据问题出现的背景,代数实部可以接受从负无穷到正无穷的所有数值。
我不是先知,我是信使。
Reason obeys itself; and ignorance submits to whatever is dictated to it.
"To understand the world, you must first seek to understand yourself."
The art of diplomacy is to understand desires of others and to find a way, where they think they get what they want.