— .
A:He is from Australia
B:He is tall and of medium build
C:He is very nice to others
D:He has a pair of blue shoes
我们有了学好英语的决心,这种决心一方面会促使我们去进行英语学习活动,另一方面又会抑制我们从事不相干的其他活动(如贪玩、睡懒觉等)。这说明( )