The research background has nothing to do with the research significance. The research background is to explain the origin and research status of this study. The significance of this research is to show the various values of this research.

2. The order is different.

When writing a paper, it is often necessary to explain the research background of the paper and explain the existing conditions before proceeding to the next step. Compared with the research background, the research significance is often displayed at the back of the paper. Only in this way can the paper be easy to understand.

Extended data:

Matters needing attention in thesis writing

(1) Numbers with a mantissa of "0" above 5 digits can be rewritten as numbers in thousands and billions. Under normal circumstances, it is not allowed to take ten, hundreds, thousands, hundreds of thousands, millions, tens of millions, billions, billions, billions, etc. As a unit (except for prefixes of hundreds, thousands and trillions). For example, 1 800 000 can be written as1800 000; 142 500 can be written as 142500, but not as142 500; 5000 words can't be written as 5000 words.

(2) Pure decimal, and the "0" used for positioning before the decimal point must be written. The "0" at the end of the significant digits of the numerical value cannot be omitted, and it should be written in full. For example, 1.500,1.750,2.000 can't be written 1.5,1.75,2.

(3) The numerical value is modified according to GB 8 170- 1987 "Rules for Numerical Value Modification", and its concise formula is "4-6 enters 5 to see the right, after 5, there are numbers going up, the mantissa is 0 to see the left, and the left number is odd to enter even and discarded". For example, round to the decimal point 1 bit, 12. 149 round to12.1; 12. 169 was changed to12.2; 12. 150 is about 12.2, 12.250 is about 12.2.

(4) The numerical value is multiplied by the length unit, and the unit after each numerical value cannot be omitted. For example, 5 cm×8 cm× 10 cm cannot be written as 5x8×10cm or 5x8×10cm3.

(5) When the units of measurement of a series of values are the same, the unit symbol can only be written after the last 1 bit. For example: 60,80, 100 mol/L. It is unnecessary to write 60 mol/L, 80 mol/L, 100 mol/L. ..

(6) When the scores are arranged by 1 line, the semicolon is diagonal.

(7) There is no uniform requirement to use comma or pause between Arabic numerals juxtaposed in the text, and each editorial department chooses a symbol under the same circumstances to achieve the unity of the whole period.

(8) The words indicating the increase or decrease of figures should be accurate.

① Increase: It can be expressed in multiples or percentages. For example, it is doubled (originally 1, now it is 2); Increase (or improve) 2 times (originally 1, now it is 3); 80% increase (original 1, now1.8); Over 80% (the quota is 100, but actually it is 180).

② Decrease: it cannot be expressed by multiples, but only by percentages or fractions. For example: reduced to the original 80% (original 100, now 80); Reduce (or decrease) by 80% (originally 100, now it is 20); Reduced to the original 1/5 (originally 1, now 0.2); Reduced (or reduced) 1/5 (originally 1, now 0.8) and so on.

(9) When using numbers as marks of grades or groups, attention should be paid to avoid ambiguity or discontinuous numbers. For example: **60 cases, 10 years old, 10/case, > For 9 cases of 20-year-old people, the author should be asked which group the whole10-year-old people belong to; & gt 10 years old and > 20 years old overlap, and the former includes the latter, which should be clearly distinguished.

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