— When is Thanksgiving Day? Is it ________ autumn?
— Yes. It's ________ November 26 this year.
A:in; in
B:on; in
C:in; on
D:on; on
——Lily, is this ___ ipad?
——No, it's not mine. I think it's Lucy's.
在观察叶片的表皮细胞装片时,物像由图甲转换到图乙不需要进行的操作是( )
某班有学生48人,他们对游泳和骑自行车这两项活动至少会一样.其中会游泳的占712,既会骑自行车又会游泳的占14,会骑自行车的有____ 人.