下列四项生理过程中,细胞膜发生的变化相同的是 ( )①胰岛素的分泌 ②抗体识别抗原③神经递质的释放 ④钙离子的吸收
听录音,选出你听到的单词或词组。 (1)A.behindB.besideC.between (2)A.CDB.TVC.DCD (3)A.new jacketB.six pockets C.the sixth pocket (4)A.telephoneB.mobile phone C.earphone (5)A.take pictures B.take photosC.make photos (6)A.look atB.looking forC.look for
I _________ football with my friends Oil Mondays.
I want to_________ next week.
_________ he _________ his homework last night?
They _________the new house last week.