单项选择题

根据《危险化学品输送管道安全管理规定》，严格控制（）穿（跨）越公共区域。

A.氨管道和硫化氢管道
B.氨管道和光气管道
C.氯气和硫化氢管道
D.燃气管道和氨管道

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听力原文：M: Excuse me, are you waiting to buy concert tickets?W: Yes, I am. So are all these people in front of mE.M: Have you been here long?W: About 45 minutes. I've moved forward a total about 3 feet in that timE.M: You're kidding!W: Not at all. There was a couple up ahead of me who got so disgusted they finally gave up and left. They said they'd been waiting for more than an hour.M: Does anyone know what's causing the delay?W: If so, no one's letting us know. It could be that there aren't enough people selling tickets this afternoon. Or maybe their computer's down. I'm sure the concert hasn't been canceleD.M: I just hope they don't run out of tickets before I get up therE.W: That really would be annoying, wouldn't it?M: I guess I should have come before lunch. Or has it been like this all day?W: Apparently it has. In fact, before I came, I tried calling to charge my tickets over the phone, just to avoid this long wait, but they're not taking phone orders, or checks, or credit cards. It's cash or nothing. And you have to come in person.M: Well, there're two more hours before the ticket office closes. Tickets to a good concert are worth waiting for. So I think I'll just make myself comfortablE.(23)A.It's crowded with peoplE.B.It's full of computers.C.Lunch is being Served therE.D.Only few people in therE.

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Since 1895 the National Trust(国家文物信托基金会) has worked for the preservation of places of historic interest and natural beauty in England, Wales and Northern IrelanD.Today the Trust — 【B1】______ is not a government department but a charity depending on the 【B2】______ support of the public and its own members — is the largest landowner and conservation society in Britain.Wherever you go, you are close to land that is protected and 【B3】______ by the National Trust. Over 300 miles of 【B4】______coastline； 90,000 acres of land, lakes and forests in one area of natural beauty 【B5】______ ； prehistoric and Roman ruins； moorlands and farmland, woods and islands； lengths of 【B6】______ waterways； even seventeen whole villages — all are open to the public at all times subject only 【B7】______ the needs of farming, forestry and the protection of wildlifE.But the Trust's protection【B8】______ further than this. It has in its possession a hundred gardens and【B9】______ two hundred historic buildings which it opens to paying visitors. Castles and churches, houses of 【B10】______or historic importance, mills, gardens and parks 【B11】______ to the Trust by their former owners. Many houses retain their 【B12】______ content of fine furniture, pictures, and other treasures accumulated over 【B13】______ , and often the donor himself continues to live in part of the house as a 【B14】______ of the National Trust. The walking-sticks in the hall, the flowers, silver-framed photographs, books and papers in the rooms are signs that the house is still loved and 【B15】______ and that visitors are welcomed as private individuals just as much as tourists.【B1】A.itB.whichC.thisD.whether it

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