“不按规定处理拒爆、残爆”属（）行为。
A、轻微“三违”
B、一般“三违”
C、严重“三违”
参考答案：C
He expressed his gratitude to his head teacher, without _______-help he wouldn’t have made such great progress in his studies.
A．whose
B．his
C．whom
D．which
什么是烈度分布图？什么是烈度异常区？
