怎么计算同期下降率简介：She pushed away the chair and stood up. She opened Su Can's composition book with her slender white fingers. She glanced through it quickly, frowned slightly, and a faint arc flashed in her eyes.
She pushed away the chair and stood up. She opened Su Can's composition book with her slender white fingers. She glanced through it quickly, frowned slightly, and a faint arc flashed in her eyes.
