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听力原文:M: I have a special guest today, Shirley. Shirley, you truly have an amazing garden. Could you [et us know how you put this together? W: Tills 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. 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 yon are walking by and seeing it all the time. Urn, you need to decide what kind of containers you want, or, in my case, I used wooden boxes. M: Wall, Shirley, I've noticed these vertical beams. I've never seen that before. Could you explain that to us a little bit? W: Right here we have some cantaloupe, and cantaloupe take a lot of space when you grow them out on the ground, and I don't have that much space, so I just grow them up. I just made a metal frame, and took some string. I just allow them to grow up, and they will support themselves. M: This is amazing. I noticed in this garden, there is u vast amount of vegetation. W: Well, over on the far end, I have tomatoes growing vertically. In front of those I have green peppers, basil, strawberries, beets, green beans, com, carrots and so on. Right here, as I said before, I have cantaloupe. Down at the bottom, I have some Mexican tomatoes. And down at this end, I have eggplant, another kind of pepper called banana peppers, cucumbers, okra, pumpkins...and I think that's about it. M: I'm so impressed. I'd like to thank you very much for having us in today to look at your garden.= (23)
A.
By attending a class.
B.
From her parents.
C.
Through a gardening magazine.
D.
From her neighbors.
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举一反三
【判断题】若原问题有最优解,那么对偶问题也有最优解(反之亦然),但两者最优值不相等。
A.
正确
B.
错误
【简答题】什么是因果类比法?
【单选题】通过人体结构设计出机器人,运用的创造技法是:()
A.
直接类比
B.
对称类比
C.
拟人类比
D.
因果类比
【简答题】()是根据自然或生物结构和功能的启发获得创新思路和方法。 A直接类比 B仿生类比 C因果类比 D对称类比
【判断题】若原问题有最优解,那么对偶问题也一定有最优解,且目标函数值相等。
A.
正确
B.
错误
【多选题】一个典型、完整产品生命周期包括 ( )
A.
研发期
B.
介绍期
C.
成长期
D.
成熟期
E.
衰退期
【单选题】若原问题有最优解,那么对偶问题也有最优解(反之亦然),且两者最优值( )。
A.
没有关系
B.
相等
C.
不一定相等
D.
一定不相等
【判断题】商务谈判的目标是与经济利益直接相关的,是指谈判者预期从谈判中获得的经济利益。
A.
正确
B.
错误
【简答题】(对偶定理)若原始问题有最优解,那么 也有最优解,且目标函数值
【判断题】航天器在发射前进行“风洞”试验,采用的是因果类比法。
A.
正确
B.
错误
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