《中华人民共和国刑法》规定，传播淫秽的书刊、影片、音像、图片或者其他淫秽物品，情节严重的，处一年以下有期徒刑、拘役或者管制。
参考答案：错
— It's said a pianist will perform at Poly Theater on Friday evening. Is it Lang Lang?
— Yes, it _______ him. He _______ for a week.
A．must be; has arrived here
B．Can’t; has been here
C．must be; has been here
D．maybe; has arrived here
转向架回流装置用于确保车体和转向架与（）的良好接地，保证安全。
