海绵状血管瘤声像图不表现为（）
A.强回声病灶
B.低回声病灶
C.周边有晕征
D.病灶轮廓清晰
E.表面欠平整，边界有毛刺
参考答案：C
A notice was put ___ on the bulletin board saying that Tom would be put ___ as the candidate for the position of the general manager.
A．off, up
B．out, down
C．up, up
D．away, in
下列有关青少年生长发育的叙述中，错误的是 [ ]
A．青春期身高和体重显著增长
B．男、女生殖器官的发育速度加快
C．第二性征依次出现
D．思维判断能力减弱
