未知题型
排水管道主立管及水平干管安装结束后均应做通球试验，通球率达（ ）为合格。
- A.50％
B.80％
C.100％
D.60％
【参考答案】
C
本题考核的是通球试验。排水管道主立管及水平干管安装结束后均应做通球试验，通球球径不小于排水管径的2／3，通球......
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甲、乙、丙公司签订一份合同，合同约定，甲公司向乙公司供应原料，一个月后，乙公司向甲公司提供相当于原料价值的制成品。在甲公司即将向乙公司运送原料时，乙公司发生火灾，损失严重，甲公司判断乙公司已无履行债务的能力，于是拒绝向乙公司运送原料，并与丙公司签订了类似的合同，把原料运到了丙公司。乙公司多次与甲公司交涉，并愿意提供相应的担保，但甲公司始终不予理睬，乙公司由于原料短缺，只好停工、停产，损失严重，遂向人民法院提起诉讼，请求甲公司承担违约责任，并请求继续履行合同。基于以上案情，请回答以下问题：在乙公司遭受火灾，损失严重的情况下，甲公司暂时拒绝履行债务的行为( )。
A.是不正当行为，因为甲公司拒绝履行债务就是违约的行为
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D．是正当行为，因为乙公司已有丧失履行债务能力的可能，甲公司享有不安抗辩权 -
单项选择题
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未知题型
SECTION B INTERVIEWDirections: In this section you will hear everything ONCE ONLY. Listen carefully and then answer the questions that follow. Questions 1 to 5 are based on an interview. At the end of the interview you will be given 10 seconds to answer each of the following five questions.Now listen to the interview.听力原文：Announcer: Hello and welcome to today' s show, Linda' s Garden. Today, we' ll be interviewing, Linda on her amazing techniques at growing a square -foot garden.Mike: Good morning and my name is Mike, and I have a special guest today, Linda. Linda, you truly have an amazing garden. Could you let us know how you' re kind of put ting this together?Linda: Well, thank you, Mike. I have tried various at tempts at gardening and with different, um, degrees of success. This spring I took a square - foot gardening class, and I decided to try some of the things I' ve learned. Urn, one of the most important things in square - foot gardening is that you choose a good location. You need at least 6 to 8 hours of direct sunshine. Urn, you also need to choose a location that has good drainage, and it should be a convenient location. A garden is a lot more fun if you are walking by and seeing it all the time. Urn, you need to decide what kind of contain ers you want, or, in my case, I used boxes, urn, wooden boxes, and then I divided them up into one - foot squares. And then just decided what I wanted to plant, and based on what the final plant would look like, I had 1 per square, or maybe 3 per, um, 3 or 4 per square, 12 per square.Mike: Well, Linda, I'm, I'm... truly amazed at kind of the architecture of this garden. I' ve noticed these vertical beams. I' ve never seen that before~ Could you explain that to us a little bit?Linda: Well, for example, right here we have some, um, cantaloupe, and cantaloupe take a lot of space when you grow them out on the ground, and I don' t have that much space, and so, I' ve just grow them up. Just grow them vertically. I' ve just made, um, a metal frame, and taken some strings, I just allow them to grow up,, and they will support themselves, the cantaloupe will. And all kinds of different vines you can do this with.Mike: This is truly amazing. I noticed this garden, a vast a mount of vegetation. Can you explain to me what you have growing in this garden?Linda: Well over on the far end, I have tomatoes growing vertically. In front of those I have, um, green peppers, bas il, strawberries, uh, beets, um, green beans, corn, car rots, all kinds of different vegetables like that. Right here, as I said before, I have, urn, cantaloupe. Down at the bottom, I have some Mexican tomatoes called tomatillos. And down at this end, I have egg plant, another kind of pepper called banana peppers, urn, cucumbers, okra,: pumpkins. .... and I think that's about it.Mike: Well, Linda, this is truly amazing. I'm so impressed, and I know our viewers will be impressed about this, this, this excellent garden. Just truly amazing. I' d like to thank you very much for having us in today to look at your garden [ Thank you, Mike ]. In a few minutes, viewers, we will let you see the entire garden, and maybe Linda will kind of show you around. So, we thank you very much for being with us today, and our special guest, Linda Have aniceday.Linda learned about square -foot gardening ______.A．by attending a classB．from her parentsC．through a gardening magazineD．by learning form. her friend
A.
Now
B.
听力原文：Announcer:
C.
Mike:
D.
Mike:
E...
F.
Mike:
G....
H.
Mike:
I.
Linda
J.
A．by
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