—When is your art lesson?
—At half _____ ten. [ ]
A. in
B. to
C. after
D. past
答案:D
三个月婴儿()
A.750ml
B.700ml
C.660ml
D.600ml
E.350ml
体静脉异位引流包括()
A.右上腔静脉畸形连接
B.左上腔静脉残留
C.右下腔静脉畸形连接
D.左下腔静脉畸形
E.肝静脉畸形连接