转移瘤细胞的倍增时间较原发瘤(),生长速度较原发瘤()
A.长,快
B.长,慢
C.短,慢
D.短,快
E.无变化,无变化
参考答案:D
男性,14岁。左肱骨髁上骨折已行手法复位,石膏托外固定。
其最严重的并发症为()
A.Volkman畸形
B.并指畸形
C.爪形手畸形
D.垂腕畸形
E.槌状指畸形
—How many students are there in your school?
— ___________ the students in our school over two thousand.[ ]
A. The number of;is
B. The number of;are
C. A number of;is
D. A number of; are