教育活动的构成要素主要包括教育者、学习者和 。
参考答案：教育影响
It was Tom as well as his friends that ________ for the serious accident.
A．was to be blamed
B．were to blame
C．was blaming
D．was to blame
建筑物物内设置消火栓时应注意哪些要求？
