锚固预应力钢筋或钢丝等的器具，在先张法中称为______，在后张法中称______。
参考答案：夹具；锚具
简述组织变革的内容。
I didn’t know at first, but later we became good friends.
A．who is the boy
B．who the boy is
C．who was the boy
D．who the boy was
