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1. What is the specific difference between tube and pipe?
Although both refer to pipes, they can be distinguished in terms of diameter. Tube refers to very thin pipes (with a diameter of less than 1 inch), while pipe refers to thicker pipes (with a diameter of more than 1 inch). In the industrial standard specifications of various countries, they can be mixed and generally written as P/T
2. Polysome profiling experiment
3. Please find two English compositions. One is how to cherish time, and the other is how to pay attention to listening in class. About 100 orders ..
1、How to value the time? Thinking about the time when I was in primary school I always feel good .Because that was the best time I have spent . I could always play with my friends happily and don＇t care about homework .But now ,while doing a lot of homework became a part of my life even many difficult outclass homework I really felt about the time passe by,I want to catch it but it just gone.So I am thinking about how to save the
2、 How to listen to the teacher carefully? It is believed that students always can not concentrate on the teacher while having classes,For me ,I only can listen carefully keepping 25 to 30 minutes .And it present that I wastes nearly 15 minutes every class. It is a large lose to gain the knowledge .To learn from the older schoolmate I found some points.First,have a good sleep last night to keep mind in learning in a largest limit.Second ,take a little spout ( Spraying water) with me .And spurt some water while want to rest.Last,keep the best gesture when having class .And always stare at the teacher ＇eyes to keep mind . Hope we will study in a good way. Its all original - I dont know what grade you are in. The first article I wrote was about how you played happily in elementary school and woke up in high school
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