꼶ѧϲ
ڶԪ
༶ ȼ
һ ֱд
2.540= 186= 1.732.07= 100.9= 4004= 0.87= 0.154= 3.140= 3.22.5= 2.8+7.02= һ
1Сڽҵĵ3е4Уã34ʾСڵ1е6Уã ʾã52ʾͬѧڵڣ еڣ С
2ͼƻλΪ23λÿԱʾΪ , ϵλüΪ
3ͼAԱʾΪ11BԱʾΪ
CԱʾΪ ABCǣ Ρ һѡȷ𰸵
1ͼXλñʾΪ23YλÿԱʾΪ
A.44 B.45 C.54 D.33
2ͼABCƽ2AƶĵλԱʾΪ A.51 B.11 C.71 D.33
3ֿ,ϴֽҵĵ4е2,(42)ʾ,ڴϴĵһλ,λԱʾ( )
A.52 B.43 C.32 D.41 ġҪ⡣
1ķͼи,⼸˳ӳһͼ,ܷʲô?
A2,1 B7,1 C9,4 D4,4
2ͼһǡ
1ã32ʾλãԱʾ ʩλд
2ǧڴԶ400m,300mͼбǧλ. 3ͼͼC㣨54ת90?תͼΣԱʾתͼζAB䣨ת㣩λá
A䣨 B䣨
4
100m
1 ɽλã52ʾͼϱ辰38 210λá
2ڿȸͤԱ200m100mͼϱλá
3٣Сһ˹·ǣ10152 74976638210дǵ·ߡ