A judgment question A project can be completed in 6 days with the cooperation of Party A and Party B. If Party A does it alone in 10 days, then Party B does it alone in 15 days

A judgment question A project can be completed in 6 days with the cooperation of Party A and Party B. If Party A does it alone in 10 days, then Party B does it alone in 15 days

1÷(1/6-1/10)
=1÷1/15
=15 (days)
A project can be completed in 6 days with the cooperation of Party A and Party B. If Party A does it alone in 10 days, then Party B does it alone in 15 days
correct
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1 judgment question
Xiao Ming was born on February 29th, 1984. It's his fifth birthday from 2000, isn't it?

There were 5 times in 1984, 1988, 1992, 1996 and 2000

3、 Only along the road of socialism with Chinese characteristics can we realize the great rejuvenation of the Chinese nation
54. At the present stage, the main contradictions in our society have not changed

Right, wrong

Most plants need soil, sunlight, water and air to grow

True, without these, plants cannot survive

A junior high school judgment question
1. The sum of two numbers with different symbols must be less than their difference
2. The sum of any two numbers is not equal to the difference between them
The sum of two numbers with different symbols must be less than the absolute value of their difference

It's right to add a supplement to the question
Two questions wrong, any number plus 0 minus 0 will not change

Junior high school a judgment!
(a-b)²（b-a）=-(b-a)³ （ ）

The quotient is 1 ()
Two related quantities are either in direct proportion or in inverse proportion ()
40 degrees south by west is 50 degrees south by West ()
On the map with a scale of 1:3500000, the length between a and B is 4.2cm, and the actual distance is 14km ()
If x divided by 5 = y (y is not equal to 0), then x is proportional to y ()

1.√
2.×
3.√
4.×
5.√

A judgment question
The first feudal dynasty in Chinese history was Qin Dynasty, and its founding emperor was Qin II. He was the first person to unify China
And explain why

Wrong. The founding emperor was Qin Shihuang. He destroyed six countries and established a centralized feudal state for the first time
Qin Shihuang first destroyed the six states, established the first unified centralized state, and completed the first unification in Chinese history

On the judgment of equation, the accuracy should be improved~
1. All equations are equations, but equations are not necessarily equations
2. Equations with unknowns are called equations
The solution of the equation and the solution of the equation are one thing
4. X & sup2; cannot be equal to 2x
5.10 = 4x-8 is not an equation
6.9.3-1.3 = 10-2 is the equation
6.9.3-1.3 = 10-2 is the equation. Wrong, it should be: 9.3-1.3 = 10-2 is the equation. （ ）

1. All equations are equations, but equations are not necessarily equations
2. An equation with unknowns is called an equation
It is one thing to solve and solve the equation
4. X2 cannot be equal to 2x
5.10 = 4x-8 is not an equation
6.9.3-1.3 = 10-2 is the equation

The edge length is 6cm cube, its volume and surface area are equal
To write right or wrong, why

The edge length is 6cm cube, its volume and surface area are equal
Surface area and volume are two completely different concepts without comparability