( )是建设项目参与各方实现基于角色(Role-Based)的界面设置。
A.建设项目协同工作层
B.工作流支持层
C.个性化设置层
D.数据安全层
参考答案:C
My father insisted that every minute ________ made full use of ________ the work well.
A.be;to do
B.has been;doing
C.be;doing
D.has been;to do
淬火与高温回火相结合的热处理工艺称为调质。