Is the American pronunciation and listening and speaking method better

Is the American pronunciation and listening and speaking method better

The content of the book is relatively compact, the knowledge system is relatively complete, and the practice content is concise. It is suitable for students who want to master the basic American pronunciation through certain practice. In fact, the amount of knowledge they need to learn is not large, and there is no special requirement for vocabulary, as long as they have junior high school or even junior high school English

Is the pronunciation of school and English the same

It's totally different
school [ sku:l ]
English ['iŋɡliʃ]

How do they speak English? With pronunciation. Thank you

They, they, they are all English [&# 240; EM;, &# 240; &# 601; M] American [&# 240; &# 601; M] accusative them

How to find n-order derivative by Taylor formula

f(x)=f(x.)+f'(x.)(x-x.)+f''(x.)/2!*(x-x.)^2,+f'''(x.)/3!*(x-x.)^3+…… +f(n)(x.)/n!*(x-x.)^n+Rn(x)
The n-th derivative of F (x)
F (n) (X.) / N! + (n-order derivative of RN (x))

It is known that f (x) is defined as a nonnegative differentiable function on (0, + ∞) and satisfies XF '(x) - f (x) ≥ 0. For any positive number a, B, if a < B, ① AF (b) ≤ BF (a); ② AF (B) ≥ BF (a); ③ AF (a) ≤ BF (b); ④ AF (a) ≥ BF (b). Where ()
A. ③B. ①③C. ②④D. ②③

The constructors g (x) = XF (x) ｜ g ′ (x) = XF '(x) + F (x) ∵ XF' (x) - f (x) ≥ 0, ∵ g ′ (x) ≥ 2F (x) ≥ 0 ∵ g (x) are monotone increasing functions on (0, + ∞) ∵ a < B, ∵ g (a) < g (b) ∵ AF (a) ≤ BF (b) constructors H (x) = f (x) x ∵ h ′ (x) = XF

Let α 1 and α 2 be real symmetric matrices of order n respectively. A belongs to real eigenvectors with different eigenvalues λ 1 and λ 2. It is proved that vector groups α 1 and α 2 are orthogonal

In recent years
In recent years,computer games have become more and more popular in many cities and towns.A lot of small shops and restaurants along busy streets have changed into computer game houses in order to get more money.These places are always crowded with people,especially young boys.
　　In the computer game houses,people spend a lot of money competing with the computerized machines.It ’s hard for one to win against a computer,but one can make progrss after trying again and again.People Have a kind of gambling psychology when they play computer games.The more they play lose the more they want to win,and at last they even cannot live without it.For school boys,they have no mind for their lessons.When class is over,they rush to the nearby computer game houses.Some of them can get enough money from their parents.But some of them are not lucky enough to get the money.They begin to steal other students’ money and become thieves.
Why does so many shops and restaurants change themselves into computer game houses?
2.What kind of people are there in this kind of places?
3.Why can't some people live without computer games?
4.According to this article,what are the reason for that people become thieves?

1、Because computer games popular in many cities and towns,shopkeeper order to more interest.2、Especially young boys.3、Because they want to win and have a kind of gambling psychology.4、They have a ...

The factorization result of x ^ 4 + ax ^ 3 + BX ^ 2 + CX + D is (x + m) ^ 4, a + B + C = 64, d =?

x=0 :d =m^4
x=1:1+a+b+c+d =(1+m)^4
(1+m)^4 -m^4 = 65
m=2
d=16

In English, most of + noun structure, is noun plural or singular

The noun added can be plural or uncountable
most of the students are girls.
most of the water is salty water.

Given that the nonzero vectors AB and AC satisfy (AB / | ab | + AC / | AC |) * BC = 0, and (AB / | ab | * AC / | AC |) = 1 / 2, then the shape of triangle ABC is--

(AB / | ab | * AC / | AC |) = 1 / 2, then cos ∠ a = 1 / 2, so ∠ a = 60 °
(AB / | ab | + AC / | AC |) * BC = 0, then ∠ B = 60 ° and ∠ C = 60 °
So the triangle ABC is an equilateral triangle