In "A Double Impulse," as a result of her classmate's question, Jeanne wants to A. be invisible.
B. become an American citizen.
C. go to a Japanese school.
D. become the class leader.

the gas pressure p, gas volume v, and gas temperature t are given in the formula:   pv=nrt,

r is the gas constant, and n is the number of gas moles.

if the container is cooled and remains under atmospheric pressure, where r is a constant that does not change, the volume of the container remains the same, the conclusion is drawn that, with all other values ​​unchanged, the number of gas moles n, is decreases.

the right answer is a.