皮皮学,免费搜题
登录
搜题
【简答题】
阅读理解 Everyone loves Adventure land!The Parks and Exhibitions were built for you to explore, enjoy, and admire their wonders. Every visit will be an unforgettable experience. You will go away enriched, longing to come back. What are you going to do this time? The Travel Pavilion Explore places you have never been to before, and experience different ways of life. Visit the Amazon jungle village, the Turkish market, the Tai floating market, the Berber mountain house and others. Talk to the people there who will tell you about their lives, and things they make. You can try making a carpet, making nets, fishing... The Future Tower This exhibition shows how progress will touch our lives. It allows us to look into the future and explore the cities of the next century and the way we'll be living then. Spend some time in our space station and climb into our simulator(模拟装置) for the Journey to Mars! The Nature Park This is not really one park but several. In the Safari Park you can drive among African animals in one of our Range Cruisers: see lions, giraffes, elephants in the wild. Move on to the Ocean Park to watch the dolphins and whales. And then there is still the Aviary to see... The Pyramid This is the center of Adventure land. Run out of film, need some postcards and stamps? For all these things and many more, visit our underground shopping center. Come here for information and ideas too. 1. The Travel Pavilion is built to help visitors _______. A. realize the importance of travelling B. become familiar with mountain countries C. learn how to make things such as fishing nets D. learn something about different places in the world 2. If you want to get a toy lion to take home, where will you most likely go? A. The Pyramid. B. The Nature Park. C. The Future Tower. D. The Travel Pvilion.
拍照语音搜题,微信中搜索"皮皮学"使用
参考答案:
参考解析:
知识点:
.
..
皮皮学刷刷变学霸
举一反三
【单选题】已知温度为27°C,则真空度 pa下1 cm3空气内的分子数的数量级
A.
/m3
B.
/m3
C.
/m3
D.
/m3
【单选题】关于多组份混合物精馏分离过程的规划,哪些选项是错误的? ( )
A.
热敏性、腐蚀性组分先分离
B.
精馏流程安排时,不要使塔顶馏出液和塔釜液流量相差过远
C.
含量多的组分先分离
D.
高纯度,高回收率的组分先分离
【单选题】关于多组份液体混合物分离过程的规划,哪些选项是错误的?
A.
相对挥发度大的组分后分离
B.
首先考虑选择普通精馏为分离手段
C.
低沸点组分需要配以低温冷源或加压精馏,应考虑先行分离
D.
精馏流程安排时,尽量选择产品馏分数最少的流程
【简答题】.以胰蛋白酶原的激活过程为例说明酶原激活的实质与酶原存在的生物学意义.
【单选题】关于多组份混合物精馏分离过程的规划,哪些选项是错误的?
A.
热敏性、腐蚀性组分先分离;
B.
精馏流程安排时,不要使塔顶馏出液和塔釜液流量相差过远;
C.
含量多的组分先离;
D.
高纯度,高回收率的组分先分离
【单选题】关于多组份液体混合物分离过程的规划,哪些选项是错误的?
A.
首先考虑选择 普通 精馏为分离手段
B.
低沸点组分需要配以低温冷源或加压精馏,应考虑先行分离
C.
精馏流程安排时,尽量选择产品馏分数最少的流程
D.
相对挥发度大的组分后分离
【多选题】关于多组份混合物精馏分离过程的规划,哪些选项是正确的?
A.
精馏流程安排时,塔顶馏出液和塔釜液流量应该大致相当
B.
腐蚀性、易聚合或结垢的组分先分离 (
C.
含量多的组分先分离
D.
高纯度、高回收率的组分先行分离
【单选题】已知温度为27°C,则真空度1.33×10-10 pa下1 m3空气内的分子数的数量级
A.
10 10 /m 3
B.
10 6 /m 3
C.
10 9 /m 3
D.
10 8 /m 3
【简答题】以胰蛋白酶原的激活过程为例说明酶原激活的实质与酶原存在的生物学意义 .
【多选题】关于多组份混合物精馏分离过程的规划,哪些选项是正确的?
A.
精馏流程安排时,塔顶馏出液和塔釜液流量应该大致相当
B.
腐蚀性、易聚合或结垢的组分先分离
C.
高纯度,高回收率的组分先行分离
D.
含量多的组分先离
相关题目: