Question 23
Original source text (layout and all choices are preserved in the source panel below):
Look at the following diagram.
Object 1 is placed on a seesaw in the above position. Where is the position to place
object 2 so that there is balance if the mass of object 2 is smaller than object 1?
A. At B C. Between A and C
B. At D D. Between D and B

Look at the following diagram.
Object 1 is placed on a seesaw in the above position. Where is the position to place
object 2 so that there is balance if the mass of object 2 is smaller than object 1?
A. At B C. Between A and C
B. At D D. Between D and B
