尤文氏瘤病人可能出现（） A.X线片可见蒂状、鹿角状或血丘状骨性凸起 B.X线片可见

已知：函数y=f（x-1）的图象关于直线x=1对称，当x＞0时，f（x）=x²-2x，则当x＜0时，f（x）=______．

一个成年人不能对细胞内寄生菌或真菌产生抗感染免疫，提示可能的原因是（）

A.此人巨噬细胞缺损

B.T细胞缺陷

C.B细胞不能产生抗体

D.此人患结核病

E.补体缺陷

在空白处填上适当的内容使对话完整。

John: Hello! Is that Mike speaking?

Mike: 小题1:___________.

John: Mike,do you enjoy your new school?

Mike: Yes,very much. But things are quite different here.

John: Really?_小题2:____________?

Mike: Yes, I go to school every day. But on Friday afternoon we do a lot of activities in the school clubs.

John: Sounds great! _小题3:_________?

Mike: I like math best. My math teacher says I am doing well in it.

John: Well done! Will you come back this summer?

Mike: Sure! See you then!

John: 小题4:__________!

下列酶中半寿期最长的是（）

A.CK

B.AMY

C.LD

D.AST

E.ALT

海桐皮汤功效与作用