Carbon dioxide , which makes a ________ between us and the sun , prevent heat from getting out of atmosphere easily ,so the earth is becoming warmer .A.differenceB.comparisonC.connectionD.barrier
Carbon dioxide , which makes a ________ between us and the sun , prevent heat from getting out of atmosphere easily ,so the earth is becoming warmer .
A、difference
B、comparison
C、connection
D、barrier
发布时间：2025-09-09 06:17:53
