问题 单项选择题

下列叙述错误有()

A、断层构造方面与隧道轴线的组合关系只有正交和斜交

B、隧道施工遇到断层一般先探明断层地质情况后再选用合理的施工方法

C、隧道穿过断层地段,施工难度取决于断层的性质、破碎带的宽度、填充物、含水性和断层活动性等因素

D、通过断层带的各施工工序之间的距离宜尽量缩短,并尽快地使全断面衬砌封闭,以减少岩层的暴露、松动和地压增大

答案

参考答案:A

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Passage 4 That brings me to my final point, which is how do we help give the Climate Group the focus that it needs. I think one part of this is that you provide us with a lot of information, the detail, the examples, the living proof, of what good environmental policy can achieve. That is one important part. // The second thing is, that we use, as our country, our position in every way we can to push this agenda at a senior level. I’ve already said that for Britain’s chairmanship of the G8 next year, there should be two issues for us: one is Africa, the other is climate change. Now I think it is important that we take a clear case on climate change to the G8 next year. I’m not saying it will always be easy, but it’s important that the case is made, and I think that will give a focus to the efforts that are being made by this group and by others, not just in this country, but elsewhere in the world. // So I wanted to come and participate in the launch of The Climate Group for a very simple reason. When I first became Prime Minister, I obviously had a certain instinctive position about this issue and we as a political party coming into government had certain policies about it. But one of the first things I did, which is one of the advantages when you come into government, is that instead of having a small research group somewhere with people doing this as well as half a dozen other things, you can mobilise some of the best scientific minds and research that there is and I said, look, give me the facts. The interesting thing that came back to me was that the facts and the research indicated that this problem was, if anything, greater than I had realised // I don’t think, as I said before, there is any bigger long-term question facing the global community. This group will be one part of a set of relationships and groups and a movement worldwide to make sure that we treat the issue with the seriousness that it deserves. One thing for sure is this, if you talk to any group of young people in our country or anywhere else today, they realise its importance. They want us to act upon it, they know sometimes it will involve difficult decisions, but the cost of not acting in this case is so overwhelmingly greater than any short-term cost of action, that we have to act and we have to act now. // So I’m delighted to be with you all this morning and I wish you the very best of luck with The Climate Group, I think it’s a very, very important initiative. I am delighted to see so many people from different parts of the world that are here today. This is an issue that will carry on dominating our agenda but hopefully with your help, it will dominate the agenda of the global community in the years to come. // (Excerpts from UK Prime Minister’s speech on climate change delivered on April 27, 2004)