A:一定存在与l平行的平面,也一定存在与α平行的平面
B:一定存在与l平行的平面,也一定存在与α垂直的平面
C:一定存在与l垂直的平面,也一定存在与α平行的平面
D:一定存在与l垂直的平面,也一定存在与α垂直的平面
其中正确的序号是____.
Do you know what an English first name means(意思)? Do you want a good name for your baby boy? Here is a list of British, American and Australian first names for boys and you can know what they mean. Then you can choose(选择)a meaningful name for your baby boy.
Name
Meaning(意思)
Meaning
Albert
bright
Bond
farmer
Austin
helpful
Bryant
strong
Blaine
thin
Byron
bear
Curt
short or little
Dave
beloved
Douglas
dark
George