A device for calculating ideas, strategies, plans, measurements, or calculations

Stratagem: stratagem, stratagem: stratagem
Instrument for measurement or calculation: thermometer and hygrometer
Smell: hear: hear the news
What you hear: news, hearsay, seeing and hearing
Sniff: sniff

RELATED INFORMATIONS

1. Li Dabo's family raises 180 chickens and ducks, and the number of ducks is one fifth of that of chickens. How many chickens and ducks does Li Dabo raise
2. 18. Making sentences with green Pinyin
3. 2, - 6,12, - 20,30 and - 42 constitute a sequence to find the general term formula
4. As shown in the figure, AC ∥ BD, ab ∥ CD, ∥ 1 = ∥ e, ∥ 2 = ∥ F, AE intersects CF at point O, try to explain: AE ⊥ CF
5. Sequence 1,8,9,4, (), 1 / 6 who knows what to put in brackets
6. The second volume of mathematics in junior high school? There are still seven big questions left. Please, it's better to have an answer! If there is a picture, bring the best! O (∩)_ Thank you~~
7. A measuring cylinder, containing 300 ml of water, put three steel balls with equal radius, and the water surface rises to 360 ml How many steel balls do you need to put to reach the 500ml mark of the measuring cylinder?
8. Factorization a ^ 3-2a-2b + B ^ 3
9. Decompose the following factors: A ^ 2 + A + 1 / 4 16A ^ 2-8ab + B ^ 2 A ^ 4-2a ^ 2B ^ 3 + B ^ 6 4(x+y)^2-12(x+y)+9 x^2-2x(y-z)+(z-y)^2 a^4-2a^2b^2+b^4
10. 20A ^ 4-33a ^ 2B ^ 2 + 7b ^ 4 （x^2-5x)^2+10(x^2-5x）-96 x^2-(a+b)xy+aby^2 X ^ 2 + X - (a ^ 2-A) A question is OK ~ best all, seems to be about cross multiplication! All four questions!
11. What can be found from the product of the greatest factor and the least common multiple of 16 and 24
12. Translation of all texts in unit 1 of junior three English
13. Observe the following numbers: (1) - 3,9, - 27,81, - 243729. (2) 0,12, - 24,84, - 243729. (3) - 1,3, - 9,27, - 81243 Take the 10th number in each row and calculate the sum of the three numbers
14. What are the types of computers? What are their characteristics?
15. How to calculate 983-347 + 547 simply
16. A new batch of children's books came to the bookstore. On the first day, 25 of them were sold. On the second day, 36 were sold. At this time, 23 more children's books were sold than the rest. How many books were sold?
17. How to solve these four numbers to get 24 points?
18. Xiao Ming said to Xiao Gang, "I'll go to your house tomorrow." Xiao Ming said to Xiao Gang that I'll play at my house
19. Scale 1; 1000 indicates that the distance on the map is a fraction of the actual distance, the actual distance is several times of the distance on the map, and 1cm on the map indicates the actual distance in meters
20. My sister often reads in the library