I want to know the answer to the following question:
What have a characteristic shape?
All the background I'm provided with is that "Just as Roman letters have a characteristic shape (lower-case letters mostly occupying the x-height, with ascenders or descenders on some letters), Chinese characters occupy a more or less square area in which the components of every character are written to fit in order to maintain a uniform size and shape, especially with small printed characters in Ming and sans-serif styles.". Is that enough to answer the question?