矢状位胸腺垂直径最大约为()
A、1mm~2cm
B、3mm~4cm
C、5mm~7cm
D、8mm~9cm
E、以上均不是
参考答案:C
佝偻病发病机制中下述哪项不正确()
A.甲状旁腺功能代偿性亢进
B.骨钙释出
C.肾小管对磷的重吸收增加
D.局部骨样组织堆积
E.碱性磷酸酶分泌增加
— I'm trying to call Marie, but there's no answer. —()
A.I didn’t realize that
B.Here is a message for her
C.I’m really sorry about it
D.Really? Maybe she’s out