从“单位”到“社区”的转变，表明社会管理的重心从“工作场所”转移到了（）。
参考答案：“居住场所”
成年人硬脊膜终止于（）。
A.第1腰椎
B.第2腰椎
C.第1骶椎
D.第2骶椎
E.骶裂孔
The computer was used in teaching. As a result，not only _____，but students became more interested in the lessons.
A．saved was teachers’ energy
B．was teachers’ energy saved
C．teachers’ energy was saved
D．was saved teachers’ energy
