《血站质量管理规范》适用于提供采供血和相关服务的（）。
A.血液中心
B.脐血站
C.采浆站
D.用血机构
E.医疗机构
参考答案：A
根据《工程建设项目施工招标投标办法》的规定，投标保证金最高不得超过( )万元人民币。
A．20
B．40
C．60
D．80
Generally speaking, all else being equal, an upward-sloping yield curve can be expected when:（）
A. inflationary expectations are beginning to subside and investors begin to show a preference for more liquid/less risky short-term securities.
B. the supply of long-term funds falls short of demand and investors begin to show a preference for more liquid/less risky short-term securities.
C. inflationary expectations are beginning to subside.
