A:太阳和月亮
B:长江和黄河
C:泰山和黄山
D:长城和故宫
用简便方法计算。
0.125×0.25×8×4 7.4×0.28+0.28×2.6 15.89-3.2-6.8
Where are the socks?____
2.7×6.3+2.7×3.7=( )