"Do you want the pants ""My pants laid in

---Hello,______

---It must be about two years since we last met. What have you been doing with yourself?

--- I've been doing all sorts of things.

A.I haven't seen you for ages

B how long have you been like this?

C. where have you been these years?  

D.nice to see you again.

造血微循环的组成是（）

A.间质细胞

B.细胞内基质

C.细胞因子

D.基质细胞

E.细胞外基质

用远中孤立倾斜的磨牙作为基牙时，此基牙上放置的固位体应是（）

A.环形卡环

B.单臂卡环

C.间隙卡环

D.杆式卡环

E.对半卡环

前台接待人员接电话时应（）。

A.主动邀请

B.认真记录

C.善始善终

D.以上都对

地（市）、县级植物检疫机构的主要职责：监督指导有关部门建立（）的种子、苗木繁育、生产基地。