AB curve multi person blockchain quiz

1. Xiao, who don't have much spare money, want to be big again. They pay thousands of yuan for the community such as Huo chain blockchain academy, and they can earn ten times as much when the market comes; Only bitcoin and Ethereum will earn the least, with little risk.

2. From Figure 1, it can be seen that girls are about 9-11 years old, boys are about 11-13 years old, and their height begins to increase rapidly. It can be seen that boys enter puberty about one to two years later than girls; According to this, combined with figure 2, it can be seen that a develops later than B. It can be seen that a represents the development of testis and B represents the development of ovary.
therefore, C

3. The slope is derived from the function expression. The intercept on the Y axis is the value of y when x = 0, and the intercept on the X axis is the value of X when y is 0

4. Divide both sides of the equation by ab to get a more standard form, obviously ab

5.

In

graph, the intersection of hyperbola and Y axis is vertex, and the distance from vertex to origin is a, which is real axis. B on the x-axis is the length of the imaginary axis

6. Draw a curve, open "animation" -- "custom animation" -- "add effect" -- "enter" -- "ladder", then you can. If a is on the left and B is on the right and appears from a to B, set the "direction" to "top right" or "bottom right", otherwise it will be "top left" or "bottom left"
if you don't understand, it should be right to ask me again. I've practiced it repeatedly

7. A. If the current and voltage are the same at the intersection of the two images, it can be seen from Ohm's law that the resistance values of the two resistors are equal; So a is right and BC is wrong
D. It can be seen from the figure that the slope of the image of resistance a is larger and larger, so the resistance of a increases with the increase of current, while the resistance of resistance B remains unchanged; So D is wrong
selected: a

8. x=rcost
y=rsint
t:0-> [UNK]/2
Format==8747;(0-> r & #178; costdsint
==8747; ( 0-> r & #178; cos & #178; tdt
=1/2×r ² Ð/2
=πr²/ 4

Additional information: OA,OB
P=0, Q x=x
Qx=1
Format===8747;( AB+BO+OA)-£8747;(BO+OA)
==8747;=dxdy-0-br />=lantr & #178; / 4

9. There are two ways to solve this problem: 1) rece the number of data points in plot drawing, such as drawing every five points, and then labeling; 2) Different graphs are marked with different linestyles instead of different markers