搜题请搜索小程序“爱下问搜题”
问题 单项选择题

甲状腺髓样癌

A．肿瘤细胞呈梭形
B．肿瘤细胞形成滤泡
C．肿瘤细胞呈条索或片状排列，分泌降钙素
D．肿瘤形成 * * ，被覆上皮细胞，核呈空泡状
E．肿瘤细胞形成角化珠

答案

参考答案：C

单项选择题

A young man was going to join the army (军队) and had to (41) a medical examination. The doctor was sitting at a desk when he came in. He said to the man, "Take your coat and shirt off and (42) on that chair.
The young man did so. The doctor looked at him for a moment without (43) up from his chair and then said, "All right. Put your clothes on again.
"But you haven’t examined me at ail!" the young man said in (44) .
"There is no need to do so," the doctor said with a (45) .
"When I (46) you to take your coat and shirt off, you heard me all right, so there is nothing wrong with your (47) . You saw the chair, so your eyes are (48) . You could take your clothes off and sit on the chair, so you must be in good health. And you understand what I told you to do and did it without a (49) , so you (50) healthy enough for the army.\

[A] pity[B] smile[C] pleasure
查看答案
选择题

下列四个命题，

①如果两个平面有三个公共点，那么这两个平面重合；

②如果两条直线不重合，那么他们可以确定一个平面；

③若l⊄α，A∈l，则A∉α；

④若P∈α，P∈β，α∩β=l，则P∈l．

其中真命题的个数为（　　）

A．1个

B．2个

C．3个

D．4个
查看答案