1,8,9,4,(),1/6。
A.3 B.2 C.1 D.1/3
1,8,9,4,(),1/6。 A.3 B.2 C.1 D.1/3
1,4,l,5,9,(),6 A.3 B.2 C.1 D.8
20/9,4/3,7/9,4/9,1/4,() A.5/36 B.1/6 C.1/9 D.1/144
1,8,9,4,(),1/6。 A.3 B.2 C.1 D.1/3
人类膳食中n一3和n一6脂肪酸的适宜比例是A.1:1B.1:(2~3)C.1:(4~6)D.1:(7~8)E.1:(9~10)
1 8 9 4 ( ) 1/6。A.3 B.2 C.1 D.1/3