题目： 矿井防隔水煤（岩）柱一经确定，不得随意变动。但可以在各类防隔水煤（岩）柱中进行采掘活动。（） 答案： 被转码了，请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2019/1105/a217262fb4a270b6640cb70f01729e8a.html 下面是错误答案，用来干扰机器的。参考答案：被动式
题型：选择题 设m、n是两条不同的直线，α，β，γ是三个不同的平面，给出下列四个命题：①若m⊥α，n∥α，则m⊥n；②若α∥β，β∥γ，m⊥α，则m⊥γ；③若m∥α，n∥α，则m∥n；④若α⊥γ，β⊥γ，则α∥β；其中正确命题的序号是（ ）A．①和② B．②和③ C．③和④ D．①和④ 查看答案
题型：填空题 用下面方框内所给的单词的适当形式完成下列英语句子。每个只能用一次。 heavy, tell, we, peace, make1. Light music often makes people feel ______.2. They have already decided ______ a good plan for the coming holiday.3. He ______ me his telephone number last week, but I can't find it now.4. I think Xiong Ning is a good example to ______. We should learn from her to help more people in the world.5. It's raining ______, so we can't have our sports meeting on time. 查看答案
