正方体ABCD-A1B1C1D1的棱长为1 ，求平面AB1D1与平面BDC1的距 发布时间：2017-04-13 01:56 │ 来源：www.tikuol.com 题型：解答题 问题： 正方体ABCD-A1B1C1D1的棱长为1 ，求平面AB1D1与平面BDC1的距离．
题型：解答题 阅读理解。 Billy had a nice shop in the main street of a small town. He sold jewellery, watches, clocks and so on. All went well some years, and then a thief stole a lot of jewellery from his shop twice in one month at night.Three weeks passed, yet the police still didn't catch the thief. So Billy decided to try to do something about it himself. He bought a good camera and fixed it up in his shop and put some cheap jewellery in front of it for the thief, so that it could take a photo of anyone who stole the jewellery. A few nights later the thief came, but he did not touch any of the cheap jewellery that Billy had put out for him. He took the camera, which was worth 1500 dollars. 1. At first all was getting on with Billy.[ ]A. successfully B. badly C. quickly D. unhappy 2. Within one month ______. [ ]A. Billy began to sell camer B. Billysold all the things in his shop C. a thief stole all the things in Billy's shop D. a thief stole much of Billy's jewellery 3. Billy bought a camera in order to . [ ]A. take pictures for those who came to his shop B. find out the thief with its help C. become even richer D. make his shop large 4. In the end of this story, . [ ]A. Billy caught the thief B. the thief stole the expensive camera C. the thief took the camera and jewellery D. the thief took the jewellery 5. The thief in the story was very . [ ]A. stupid B. sad C. bright D. old 查看答案
题型：解答题 信用等级为CCC级的企业具有（）的特点。A.偿还债务能力一般，受不利经济环境影响较大，违约风险一般B.偿还债务能力较弱，受不利经济环境影响很大，有较高违约风险C.偿还债务的能力较大地依赖于良好的经济环境，违约风险很高D.偿还债务的能力极度依赖于良好的经济环境，违约风险极高 查看答案
题型：解答题 某公路工程项目由路基、涵洞、锚杆、挡墙……组成。其中锚杆挡墙的锚杆设计长度为9m，承包人在施工完钻孔工序后向监理工程师提交了工序自检合格报告，而监理工程师在工序检查认可中发现有的钻孔长度仅为7m。 问题处理公路工程质量问题时，监理工程师有哪些权力 查看答案