—The land in the southwest of China is in great need of .—Yes, it hasn't rained for a long time there.
A:people
B:food
C:water
橡皮泥形状
长方体
圆柱体
圆环形
碎块
橡皮泥质量m/g
28
如图,四边形ABCD中,AD∥BC,DE平分∠ADB,∠BDC=∠BCD.