选择题:The damage of all the following causes the death o

题目内容:
The damage of all the following causes the death of people except ____________. A dams and bridges
B buildings and dams
C bridges and buildings
D some works like steel works and brick works

参考答案:

煤与瓦斯突出主要是地质构造应力及矿山压力、 、岩石及煤的物理力学性质等三个方面因素作用的结果

煤与瓦斯突出主要是地质构造应力及矿山压力、 、岩石及煤的物理力学性质等三个方面因素作用的结果。

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