办学之初，门口挂着“升官发财请往他处，贪生畏死勿入斯门”对联的学校是 [ ]
A．京师同文馆
B．京师大学堂
C．北京大学
D．黄埔军校
答案：D
—Look at the boy running on the ground. Is it Davis?
—It _____ be him. I saw him go to the teacher's office just now. [ ]
A. must
B. can't
C. could
D. might
班级管理可以采用的方法有哪些？
