A:how the instant noodles are made
B:how to cook instant noodles
C:something about the layer of wax coating on the noodles
D:how to eat instant noodles safely and healthily
宪法修改的过程表明了我国的根本政治制度是( )
有一批抗锈病(显性性状)小麦种子,要确定这些种子是否纯种,正确且简便的方法是( )
有甲、乙两个LC振荡电路,线圈的自感系数相同,甲的电容是乙的10倍,则甲、乙两振荡电路的振荡频率之比是____.