通过合同结构图可以清晰地了解项目各参与方的( )关系。
A.合同组织
B.工作职责
C.工作流程
D.指令
参考答案:A
--- Have you heard about that car accident near the school?
---Yes, luckily no one_______.
A.hurt
B.was hurt
C.has hurt
D.were hurt
提踵实验阳性,是指下列哪项提踵不能站立?()
A.30°
B.40°
C.50°
D.60°
E.70°