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问题 单项选择题

在某些情况下，被保险人患病或遭受意外伤害，最终是否残疾在短期内难以判定，为此保险公司规定一个定残期限，过了该期限后仍无明显好转征兆的，认定为全残。这种情况称为( )。

A．列举式全残

B．绝对全残

C．原职业全残

D．推定全残

答案

参考答案：D

单项选择题

The nurse is providing home care to a client with failing vision due to macular degeneration. The nurse is concerned about the client’s safety. Which of the following activities would help to lessen the client’s risk of falling

A. Arranging pieces of furniture close together so the client can use them for guidance and support.
B. Encouraging the client to wear a medical identification bracelet that describes the client’s visual deficit.
C. Installing a flashing light to indicate when the phone or doorbell is ringing.
D. Installing handrails in hallways, in bathrooms, and on steps.
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选择题

一质点在平面上作匀变速曲线运动，在时间t=1s，t=2s，t=3s时，分别经过A、B、C三点，已知A、B之间的直线距离为4m，B、C之间的直线距离为3m，且直线AB与直线BC垂直，求质点加速度的大小（　　）

E．5m/s2

A．3m/s2B．

2

5
2
m/s2		C．5m/s2D．6m/s2
   
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