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190321
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m and v are integers. m+v=?
1：mv=6
2：$$(m+v)^2=25$$
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190321
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In a Cartesian coordinate system, a straight line goes through the point (1,p). Is the slope of this line greater than 0?
1: This line goes through the point (p,13).
2: The line goes through the point (0,1).
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190415 还原机经选题: 数论&代数
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ababa is a five-digit integer. Can ababa be divided by 3?
1: a can be divided by 3.
2: b can be divided by 3.
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190310
|
There are 21 students in a class. Does the average score of the class exceed 80?
1: The median score of the students in the class is 91.
2: The lowest score of the students in the class is 78.
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190310
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Is b even?
1:$$b^a+a$$ is even.
2:$$a^b+b$$ is even.
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190310
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Is |x|>|y|？
1：x/y>0
2：xy>0
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190310
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p,s are different integers. How many factors does $$ps^2$$ have?
1: p,s are prime numbers.
2: p,s are odd.
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190310
|
a,b,c,d are integers. abcd-a-b-d=？
1：d²≥289
2：a²+b²+c²+d²=289
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190310
|
There are n students in a class (n>5). Each student has at least one pen. Do at least two students have the same number of pens?
1: The total number of pens is equal to 30.
2: The total number of pens is $$n^2-n$$.
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190310
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In the cinema, the unit price is $20 for adults and $5 for children. What was the average price of tickets sold at this cinema?
1: The number of adult tickets sold in this cinema was three times of that of children tickets.
2: The cinema sold out ten children's tickets.
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190310
|
In rectangular ABCD, ab = 10, BC = 6. What is the area of the blank area?
1：l=0.8
2：∠d=45°
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190310
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r,s,t are positive integers. t=?
1：s=rt+s
2：st=r
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190124
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Candies were given to n students (n > 5). Did at least two students get the same amount of candy?
1: The total number of sweets is greater than .
2: The total number of sweets is greater than $$\frac{n^{2}-n}{2}$$.
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190124 还原机经选题: 文字题&几何 730高分节-数学测试
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There are 21 students in a class. Does the average score of all the students in this class exceed 80?
1: The minimum score is 78.
2: The median is 91.
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190124
|
Is |x-y| > |x-z|？
1：|y| > |z|
2：x < 0
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190124
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abcd+b+c+d=？
1：d ≥ 294
2：$$a^{2}$$+$$b^{2}$$+$$c^{2}$$+d = 294
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190124
|
[x] represents the minimum integer greater than x. Is x-[x] < 0?
1: x is positive.
2: x is irrational.
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190113
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What is the average of x,y,z?
(1)2x-y+z=6
(2)x+4y+2z=9
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190113 还原机经选题: 文字题&几何
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There are 40 cards in a box. Each card represents an integer. How many of the cards with odd integer?
(1) The probability that a card with an even integer is selected randomly is 5/8
(2) When two cars are taken out randomly, the probability that the two numbers on the cards are both even is 2/13.
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190113
|
$$n^{x}p^{y}r^{z}$$ < 100. If n, p, r, x, y, and z are positive integers. Are n, p, and r prime numbers?
(1)x+y+z=5
(2)npr=30
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