35×4表示______个______连加,也表示______的______倍是多少.
35×4表示4个35连加,
也表示35的4倍是多少.
故答案为:4,35,35,4.
–Jack is ill in hospital.
--Really ? I __________ him right now.
A.will visit
B.am going to visit
C.am to visit
D.am about to visit
先天性二尖瓣前叶裂常与以下哪种畸形并发
A.室间隔膜周部缺损B.三尖瓣下移畸形C.原发孔房间隔缺损D.肺动脉狭窄E.继发孔房间隔缺损