There are 40 English words (with Chinese meaning) beginning with H Must be 40, also have Chinese meaning. Time is urgent 40 40！

Help help holder handle height Hill her he he he hurry hurry horribly unpleasant, unpleasant, harsh, uncomfortable happy home have honey highway hat Hunter hit hole

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1. The first problem is to find the general solution of the differential equation y "+ y = 3x ^ 2. The second problem is to find the general solution of the differential equation y '- (Y-X) ^ 2 = 1 It's the Advanced Mathematics I learned in the University, but I forgot,
2. Mother's English words
3. The image of function y = - xcosx Write the general process
4. The ice at 0 ℃ melts into water at 0 ℃. Because the temperature remains the same, the internal energy remains the same
5. Why does sgnx use SGN to represent symbolic function
6. 45mm - how many decimeters is 15mm
7. What is the 63rd power of 2
8. 7 out of 8 times how much is 1, 5 out of 3 times how much is 1, 19 out of 18 times how much is 1
9. The maximum value x of function y = 2x / X & # 178; + 1 is greater than 0
10. What is composite number? What is prime number?
11. Calculate the square of 1949 - the square of 1950 + the square of 1951 - the square of 1952 + +The square of 1997 - the square of 1998 + the square of 1999
12. What an interesting job I do ( ) ( )( )I'm doing
13. Let f (x) be defined as R. if f (x + 1) and f (x-1) are both odd functions, then the function y = f (x) has at least one in the interval [0100]______ Zero
14. If students go boating, if each boat takes six people, two seats will be free; if each boat takes four people, three boats will be short. How many students go boating? How many boats did you hire?
15. Is the predicate after some vegetables plural or singular
16. My father severely criticized his wrong way of doing things
17. In the polar coordinate system, O is the pole, set a (4, π 6), B (2, 5 π 6), then the area of triangle OAB is______ ．
18. The supermarket bought a batch of apples, the number of Apple baskets accounted for 1 / 3 of the total number of baskets, and the number of pear baskets accounted for the remaining 1 / 3. There are 30 boxes of apples and pears, how many fruits are there in total
19. Two boxes of apples weigh 90 kg in total. After taking one fifth of them out of the first box, the two boxes are equal in weight. How many kg does the first box weigh? Seek truth!
20. The greatest common divisor of 60 and a number is 30, and the least common multiple is 60. What is the number?