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1. (1) The output in February is lower than the original plan,
lower than the original plan: (2700-2650) ÷ two thousand and seven hundred × 100%，
=50 ÷ two thousand and seven hundred × 100%,
≈ 1.85%,
A: the output in February is lower than the original plan, which is 1.85% lower than the original plan<
(2) overfulfilled in January, April, may and June,
overfulfilled in January: 2600-2540 = 60 (units),
overfulfilled in April: 2950-2850 = 100 (units),
overfulfilled in May: 3200-3000 = 200 (units),
overfulfilled in June: 3150-3100 = 50 (units),
answer: overfulfilled in January, April, may and June, each exceeding 60, 100, 200, 200 (3) the percentage of actual proction exceeding planned proction in May:
(3200-3000) ÷ three thousand × 100%，
=200 ÷ three thousand × A: the actual output in May exceeded 6.67% of the planned output.
(4) the actual output in March accounted for 2750% of the planned output ÷ two thousand seven hundred and fifty × 100%，
=1 × 100%,
= 100%,
A: the actual proction in March accounts for 100% of the planned proction

2.

In order to keep up with the market demand for flagship models, Apple has switched the capacity of 2 million units from the iPhone 12 mini to the iPhone 12 pro. It is reported that the overall sales of the iPhone 12 series are higher than expected, but the sales of the iPhone 12 Mini among the four phones are disappointing

previously, a new report on the sales performance of iPhone 12 series procts in the United States by CIRP, a data organization, showed that ring the period from October to November after the release, iPhone 12 series procts accounted for 76% of all iPhone sales, and among the four models, 6.1-inch iPhone 12 accounted for the largest share of new iPhone sales in the United States, reaching 27%; Both iPhone 12 pro and iPhone 12 Pro Max account for about 20% of new iPhone sales in the United States. Only iPhone 12 mini, only 6%

at present, apple is still trying to meet the needs of users for Pro Series. According to the delivery time, the average delivery time of the models in the past four years is 10 days, but at present, the delivery time of the iPhone 12 Pro is from 22 days to 12316 days; About 2 weeks, much longer than the average time. So the iPhone supply chain team recently launched the iPhone 12 pro & zwnj; The proction of the iPhone 12 MINI has increased by 2 million units

3. The reasons for low yield are as follows:
1. The adaptability of varieties is poor. Some of the introced varieties are not adapted to the climate and soil conditions in Guanzhong Plain, such as Longguan, meizao and so on. The yield of each 10-year-old tree is about 2.5 kg
2. Extensive management. Sweet cherry has strong branching ability, vigorous growth of young trees, untimely pruning, canopy closure and unreasonable fertilization. It pays attention to the application of inorganic fertilizer and ignores the application of organic base fertilizer, resulting in vigorous growth, few flowers and low yield
3. Most varieties of sweet cherry don't have self flowering or low fruiting power without paying attention to the configuration of pollinating trees. There should be no less than 2 pollination varieties in sweet cherry orchard, and the ratio of main varieties to pollination should be 3:1, but the configuration of pollination trees is ignored in proction, or the varieties of pollination trees are few, and the yield is low
4. Sweet cherry blossoms early, and the cold current, late frost, freezing rain, resial snow and dry cold wind in spring often damage the flowers and fruits, resulting in low yield or unstable yield
countermeasures:
grafting improved varieties. For example, select Brooks, coral Champaign, Italian early red and other good varieties, high grafting tree 2-3 years can restore the current crown size.

4. Save the cost of developing the mold, and the time waste of replacing the mold in the proction process. In addition, a series of installation, packaging and other proction links also save the waste of working hours, and improve the proction efficiency.

5. A piece of land has m tons of original grain. Due to flood last year, its output was 40% lower than that of the original, and this year's output is 40% higher than that of last year. In this way, the output of this year is () higher than that of the original
(1) increased by 40% (2) decreased by 40% (3) unchanged (4) increased by 20%
m ×( 1-0.4) ×( 1+0.4)=0.84M;<
there is no correct

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6.

In ancient times, the low yield of crops could only represent the average level of their agriculture, not the upper and lower limits of a society. Therefore, there were wine pools and meat forests in ancient times, and there were famine escapes in disaster years. It can be seen from this that wine was one of the upper limits of people in ancient times{ RRRRR}

Third, the proportion of food and human is the decisive factor

finally, the conditions mentioned in the title are too one-sided. In ancient times, the grain yield is indeed insignificant compared with today, but the population in ancient times is also very small. The population of Han Dynasty was only 50 million at its peak, and the later dynasties are basically not as large as that of Han Dynasty. Generally, the population is maintained at 30 million to 40 million, It was not until the Yongzheng period of the Qing Dynasty that the grain output increased sharply, and the population officially broke through the 100 million mark. Therefore, in ancient times, the demand for food was not big. As long as the food could meet the needs of human beings, the rest could be used to make wine

7. First of all, let's talk about the relationship between radiology and clinicians. In fact, radiologists also belong to clinicians. In medical colleges, in the first three years, the learning of all radiologists and other clinicians is the same

similarly, radiologists, like other clinicians, take the same examination questions for practicing doctors. Radiologists have no clinical practical experience, but they also have basic clinical knowledge. Radiology is a specialized subject for radiologists, and radiologists are obviously better than clinicians in the diagnosis of imaging data. The diagnosis of imaging diseases in a hospital is mainly based on the opinions of radiologists

you should take it to the radiology department. The CT room is part of the radiology department. But if there is a disease, you should get the relevant departments to listen to the clinician's opinions on the disease

in addition, be sure to remind you that if it is pulmonary inflammation, such as lobar pneumonia, bronchitis, tuberculosis and so on, you should go to the Department of respiratory medicine

if it's a lung tumor, trauma, etc., you should see a cardiothoracic surgeon,

8. This is a CT report. It can be seen that there is a small piece of high density shadow in the middle lobe of the right lung. The nature is to be determined. Combined with the patient's age and previous smoking history, it should be further clarified, such as bronchos and biopsy.

9. If you are a lung and your body is white, then I suggest you do a cost-effective test, and I want to recognize one

10. Shenyang has many places can check the lung, go to the regular physical examination center for physical examination, the examination is more accurate, don't go to some private clinics for physical examination. In addition, it is best not to do physical examination ring the cold, so as not to affect the accuracy.