Given rational numbers a, B satisfy a + b > 0, B

Given rational numbers a, B satisfy a + b > 0, B

The absolute number of a is greater than that of B. because B is less than 0, B is a negative number
So a is greater than - B, B is greater than - A
The maximum is a and the minimum is - A

Zero is ()
A. The smallest non positive rational number B. the largest non positive rational number C. the smallest integer D. the smallest rational number

A. There is no minimum non positive rational number, so the option is wrong; B, non positive rational number includes 0 and negative rational number, among which 0 is the largest, so the option is correct; C, there is no minimum integer, so the option is wrong; D, there is no minimum rational number, so the option is wrong. So select B

Given a & lt; 0, AB & lt; 0, and | a | & gt; | B |, try to compare the size of a, B, - A, - B

-a>b>-b>a

When the verb is be, is the past tense used as was or were?

It is time that the past tense can be either was or were,
But it depends on the following object clause
The people are still in the dark about this.It is time that the announcement was made.
People are very worried about the lack of action.It ‘s time that their minds were set at ease.
I agree with what you said upstairs. That can be omitted
I hope it helps you,
I'm Canadian and a native English speaker

The impact of the development of biological science and technology on human society
1. What breakthroughs have been or will be made in biological science and technology?
2. What impact has the development of biological science had or will have on human society?
Good and bad can be, not particularly abstruse, the best longer
I want something new

We have successfully cultivated a new plant species - "petroleum grass", which can directly produce energy substances. After the stem of this plant is cut, it will flow out white milky liquid and be refined to get oil. In the aspect of using bacteria to control oil pollution, because different components of oil often need to be decomposed by different bacteria, scientists will separate the genes of different bacteria, This kind of "super bacteria" decomposes oil much faster than ordinary bacteria, and its ability to purify oil pollution has been significantly improved
With the continuous exploration in the field of life science, biotechnology has been developed by leaps and bounds. As we all know, the shortage of energy is now an inescapable fact. The application of biotechnology can reduce the pressure of energy shortage on human society to some extent. (biodiesel, bio oil)
PS. almost all of the above are advantages... As for the harm it brings to human beings. It seems that film directors are more concerned about... Suggest to see alien bacteria, I am a legend, etc
After watching these two films, I think you can write no less than 800 words in the article, ha ha
Hope you are satisfied, ha ha

Are we going to see our English teacher next Friday

No
Are going to
If you have any questions, please continue to ask:)

As shown in the figure, in △ ABC, ∠ C = 90 °, ad is the bisector of ∠ BAC, de ⊥ AB is on e, f is on AC, BD = DF. The following results are obtained: (1) CF = EB; (2) CBA + ∠ AFD = 180 °

(1) In RT △ DCF and RT △ DEB, BD = dfdc = De, at △ DCF ≌ RT ≌ DEB (HL), CF = EB. (2) ≔ RT ≌ DCF ≌ RT ≌ DEB, (2) ≂ RT ≌ DFC = ∠ B. ≂ DFC + ∠ AFD = 180 ° and ≌ cab + ∠ AFD = 180 °

Are clothes usually plural or singular

It's a plural noun. It's plural~
Cloth also means cloth

As shown in the figure, D and E are two points on the edge of △ ABC, and BD = de = EC = ad = AE, find the degree of ∠ BAC

Because ad = de = AE, ∠ ade = ∠ DEA = ∠ DAE = 60 °, so ∠ ADB = 120 ° and ∠ AEC = 120 °. Because BD = ad, AE = EC, ∠ B = ∠ bad = 12 (180 ° - ADB) = 12 (180 ° - 120 °) = 30 ° and ∠ C = ∠ CAE = 12 (180 ° - AEC) = 12 (180 ° - 120 °) = 30 °, so ∠ BAC = ∠ bad + ∠ DAE + ∠ CAE = 30 ° + 60 ° + 30 ° = 120 °

What is the secret solution to the greatest common factor and the least common multiple?
For example: greatest common factor * least common multiple = number a * number B

A and B
A × B △ their greatest common factor = least common multiple