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问题 单项选择题

掉话次数是如何计算的？A：无线掉话B：BSC间切换掉话C：BSC内切换掉话D：小区内部切换掉话请从下列公式中选择（）

A.A-（B+C+D.

B.A+B+C+D

C.A+B

D.A+D

答案

参考答案：B

单项选择题 A3/A4型题

女性，60岁，全身不适伴多关节对称性肿痛10年，晨起关节僵硬达2小时，活动后逐渐缓解。近2年患者病情加重，行走困难。查体：双手尺偏、纽扣指畸形，双膝关节轻度肿胀、屈曲挛缩畸形，活动度范围20°～80°。X线检查可见双膝关节间隙明显变窄，骨质疏松，关节周围有骨赘增生。血常规检查WBC轻度升高，血沉60mm／第1小时，RF阳性。

目前该病人最佳的治疗方法应该是（）

A.保守治疗

B.膝关节表面置换术

C.膝关节融合术

D.膝滑膜切除术

E.膝关节镜下关节清理术
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单项选择题

A recent report determined that although only three percent of drivers on Maryland highways equipped their vehicles with radar detectors, thirty-three percent of all vehicles ticketed for exceeding the speed limit were equipped with them. Clearly, drivers who equip their vehicles with radar detectors are more likely to exceed the speed limit regularly than are drivers who do not.
The conclusion drawn above depends on which of the following assumptions

A．Drivers who equip their vehicles with radar detectors are less likely to be ticketed for exceeding the speed limit than are drivers who do not.

B．Drivers who are ticketed for exceeding the speed limit are more likely to exceed the speed limit regularly than are drivers who are not ticketed.

C．The number of vehicles that were ticketed for exceeding the speed limit was greater than the number of vehicles that were equipped with radar detectors.

D．Many of the vehicles that were ticketed for exceeding the speed limit were ticketed more than once in the time period covered by the report.

E．(E) Drivers on Maryland highways exceeded the speed limit more often than did drivers on other state highways not covered in the report.
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