5th Grade Science Winter Vacation Data Gathering Asks Artificial Functions, How Should I 30

Part I. p. 6.

1. Draw a picture and do the math.

The length of the rectangle is (4) meters.

2. Solve problems.

4 (km) A: This canal is 4 km long.

49 (trees) Answer: The students in the second class planted 49 trees.

3. Select the correct answer and fill in the serial number in parentheses.

p. 7. 1. Look at the picture and fill in the blanks.

Inverse. Shun 90

2. According to the product of column 1, quickly write the product of the two numbers in each column.

3. Fill in the numbers according to the rules.

Fourth, use the easy method to calculate each question.

5. Fill in the blanks. The area of a triangle is (a), the area of a square is (4a), and the area of a trapezoid is (5a).

Part II. p. 17. 1. Judgment.

Second, a small survey.

Don't do] 3. Calculation. (Think about how easy it is.) )

Fourth, do the questions as required.

Omitted] Note: Label the "arrow". The first 2 translations use the "dashed line", and the final shape uses the "solid line". 5. Fill in the blanks.

The product of the reserved 1 decimal place is (

Hour = (4) hour (36) minute.

6. Count.

There are (8) triangles in the diagram below.

p. 18. 1. Solve.

The area of the small parallelogram (shaded part) is (24) square centimeters.

Analysis: The area of the shadow parallelogram = the base height = the area of the large parallelogram] Second, the application problem.

50 sets) A: 50 meters of cloth can make 23 sets of such sets.

A decimal of "1" is not enough to make 1 outfit. 】

60) 13+1=14 (pcs).

A: 14 of these drums are needed.

A decimal of less than "1" means that the remaining one also needs 1 oil drum. 3. Calculate in a simple way.

Fourth, do the questions as required.

1) Column: 408 (6-1) = km).

Quantitative relationship: total distance (planned time - 1) = actual speed] 2) column formula: [408-84 - (84 + km)

Quantitative relationship: [total distance - first distance - (second day distance)] 3 days after = speed after 3 days].

1) How many parts do you plan to machine per day?

Column: 4500 15=300 (pcs).

2) How many parts are actually machined per day?

Column: 300+75=375 (pcs).

3) How many days does it take for the processing to be completed?

Column: 4500 375 = 12 (days).

This kind of question is almost impossible to answer, even if there is an answer, most of them are printed, it is difficult to answer, and there are very few people who just have this book, this kind of question can really be said to be difficult for a strong man, even if you give 200 points, few people can answer it, not that we are not enthusiastic, this is really beyond the ability of most people, because there are many kinds of exercises, and there are not so many people who have egg pain will type the printed matter into an electronic version, maybe there is no electronic version of the book, So there is little point in asking these kinds of questions. If you don't believe it, if you go to the 0 answer page of the educational science class, there are many answers to the book, and most of them end up closing or adopting one indiscriminately.

The above is purely hand-played.

I'll just tell you the first page! ~~

One, I'll fill in the blanks.

1. Light source. 2. 300,000 kilometers in a straight line.

3. Different dark colors.

Second, I will judge.

1, false 2, true.

3. Yes. Three, I will choose.

1、b2、c

1, can 2, can't.

3. Explain that light travels in a straight line.

Can you guess what we are based on your scientific knowledge?

1. Ruler. 2. Stop the meter.

3. Waterfall. 4. Salt 5. Water.

6. Heart. 7. Shadow.

This netizen: I want to say to you, if I really give you all the answers, I will insult the personality of a teacher, friends, work hard, I am willing to help if there is any problem.

--Your friend.

Do it yourself, you can't copy the answers.

Zhao is a salesman, Qian is a worker, Sun is a teacher, and Li is a doctor.

Zhao is (salesperson).

Money is (for workers).

Sun is (teacher).

Lee is ( Doctor )

1.Zhao and Qian are neighbors and ride to work together every day + 4Teachers walk to work every day = aNeither Zhao nor Qian are teachers.

1.Zhao and Qian are neighbors and ride to work together every day + 5The salesperson's neighbor is not a doctor = bZhao and Qian could not be doctors and salesmen at the same time.

a + b = c.One of Zhao and Qian must be a worker.

6.The doctor and the worker did not know each other. +c.One of Zhao and Qian must be a worker + aNeither Zhao nor Qian are teachers = dThe worker's neighbors are the salesman, i.e., Zhao and Qian, one is a worker and the other is a salesperson.

2.Qian is older than Sun + 7The doctor is + d. older than both the salesperson and the workerZhao and Qian one is a worker and the other is a salesperson = eSun was not a doctor, a worker or a salesman, i.e. Sun was a teacher, and Lee was a doctor.

6.The doctor and the worker did not know each other. +3.Zhao Zai taught Li to play Tai Chi + eLee is a doctor = Zhao is not a worker but a salesman, and money is a worker.

Grade 18 one-year student registration.

I dare not talk about the trump card of trumps, but we are second to none in biology.

Let's take a look at the statistics of Qingta:

It can be seen that USTC actually ranks 4-6, and the gap with the other two is not very large, which is enough to see that the investment and construction of USTC in this area are in the forefront of China, so the conditions for studying biology at USTC are absolutely sufficient.

It is often said that "the 21st century is the century of life sciences", why? Look at the proportion of countries investing in biotechnology:

Hardware and equipment companies account for the largest share of the top 10, followed by software and computers, automobiles and components, and pharmaceuticals and biotechnology. But fromR&D investment intensityLook,Pharmaceutical and biotechnology industriesR&DThe highest proportion of inputScience and technology hardware and technology companies followed, and the proportion of R&D investment in traditional industries such as automobiles and electrical was low.

2018 EU Industrial R&D Investment Rankings.

It can be seenCountries have high hopes for this, are also full of efforts to study the results, which can also reflect its "popularity". Biology is the essence of life, and thus derives medicine that cures diseases and saves people, paleontology and microbiology, as well as neurology that studies human behavior, and even breeds that studies food. There are many kinds, so let's say, choose to study biology majors, and then oneThere is a lot of room for development

, rich in employment directions

And given its intersection with many fields, it also makes it easy for you to find employment in other industries (job-hopping warning).