According to the new research gardening is a more _____ exercise for older women than jogging or swimming. [ ]

A. mental

B. physical

C. effective

D. efficient

下列不属于设计单位的安全责任的是( )。

A．科学设计的责任
B．提出建议的责任
C．承担后果的责任
D．编制安全技术措施