What does the speaker say about residential and community care?
A. It was mainly provided by voluntary services.
B. It mainly caters to the needs of the privileged.
C. It called for a sufficient number of volunteers.
D. It has deteriorated over the past sixty years.
查看答案
What made management of care for the elderly more difficult in the 1980s?
A. Their longer lifespans.
B. Fewer home helpers available.
C. Their preference for private services.
D. More of them suffering serious illnesses.
What does the speaker say about older people in England?
A. They are unable to pay for health services.
B. They have long been discriminated against.
C. They are vulnerable to illnesses and diseases.
D. They have contributed a great deal to society.
在移动通信室内覆盖系统中，室分天线可以把信源传出的射频信号发射到无线环境中（）；也可以从无线环境中收集电磁波信号，回传给信源（）。
A. 下行方向，上行方向
B. 上行方向，下行方向
C. 上行方向，上行方向
D. 下行方向，下行方向
天线距离A点为10米；无线电波频率为900MHz，不考虑穿墙损耗和衰落损耗，其自由空间损耗为多少
A. 50.55
B. 51.55
C. 52.55
D. 53.55
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