甲状腺髓样癌的特征包括()。
A.可有家族史
B.分泌降钙素
C.癌细胞多形性明显
D.间质黏液变性
E.电镜下癌细胞内有神经内分泌颗粒
参考答案:A, B, C, E
需与脑血栓形成进行鉴别的疾病包括()
A.颅内占位病变
B.脑栓塞
C.脑出血
D.蛛网膜下腔出血
E.颅内静脉窦血栓形成
Why should the SES operators be very careful when the ship enters the area where three ocean regions overlap? Because().
A.the weather is always terrible
B.the condition there is complicated
C.the signals are too p
D.their SES may receive the signals from unwanted satellite