题目内容

A4型题女,34岁,曾生育1子,并流产3次,近2年来痛经有日渐加重趋势。妇科检查;左侧附件可触及直径6cm的囊性包块,张力高,推之不动,有粘连感,追问病史,1年前肿块直径仅4cm。 若患者要求手术治疗,你认为下列那种治疗方案较好()

A. 全子宫切除+清除异位病灶+患侧卵巢切除
B. 粘连分解+切除异位病灶+卵巢囊肿剥出术
C. 全子宫切除+清除异位病灶+患侧卵巢切除
D. 全子宫切除+双侧附件切除术
E. 全子宫切除+卵巢囊肿穿刺抽液后肌注无水酒精

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假设用12个二进制位表示数据。它能表示的最大无符号整数为 (3) ;若采用原码,它能表示的最小负整数为 (4) 。

A. -2046
B. -2047
C. -4095
D. -4096

The devastating effects of earthquakes on human lives and property have encouraged the search for earthquake prediction. This challenge remains and contemporary seismologists continue to seek reliable methods for pinpointing the time, place and magnitude of individual quakes. One prediction technique involves an analysis of the recurrence rates of earthquakes as indicators of future seismic activity. Earthquakes are concentrated in certain areas of the world where tectonic plates such as the Pacific Plate, the Eurasian Plate and the African Plate meet and create fault zones and it is in these areas that seismologists focus their investigations. The tectonic plate model provides another tool for earthquake prediction by calculating the accumulated strain at plate boundaries. When the strain reaches a certain magnitude the pressure must be released and it is therefore hypothesized that in such eases an earthquake is imminent. The search for premonitory phenomena has received particular attention. In contrast to the ancient Greeks and Romans, who relied on the howling of dogs as a warning sign, modern seismologists have focused on physical evidence for an impending earthquake. Evidence of plate strain can be found by measuring relative movements in geodetic stations, while chemical changes also offer signals for seismologists. Using chemical-detection techniques, scientists established a link between the rise in the concentration of radon gas in mineral water and the subsequent earthquake. Analysis of the changes in magnetic properties and conductivity of rocks provides further data for prediction. The electrical and magnetic properties of crustal rocks particularly sensitive to strain and studies measuring changes which occur in these properties have provided promising results. The conductivity of crustal rock is determined by the degree to which the rock is saturated with fluid and the electrolytic properties of those fluids. Before large earthquakes, small fractures develop in rocks, which change the quantity of fluid present. These changes can be measured and provide useful predictive data. However, similar changes in the fluid-bearing capacity of rock can occur as a result of other factors such as changes in the water table, and therefore this technique is not entirely reliable. The belief that the behavior of birds, eats and dogs provides evidence of imminent earthquakes has recently gained credence. It is hypothesized that the animals are sensitive to the seismic waves which precede major quakes. In zones where earthquakes are known to occur, improved construction techniques can significantly reduce the effects of seismic waves. If more accurate information regarding the time and magnitude were available, governments could take even more effective measures to reduce the impact on human life. If an entirely accurate prediction technique became available, there would be significant social and political implications. An earthquake prediction in a major urban area would require governments to provide an effective evacuation strategy, necessitating massive resource and political will. Which of the following is not what scientists attempt to find out about earthquakes

A. Time.
B. Animals.
C. Magnitude.
D. Place.

假设用12个二进制位表示数据。它能表示的最大无符号整数为 (3) ;若采用原码,它能表示的最小负整数为 (4) 。

A. 2048
B. 2049
C. 4094
D. 4095

一个进程被唤醒,意味着 (6) 。

A. 该进程重新占有了CPU
B. 进程状态变为就绪
C. 它的优先权变为最大
D. 其PCB移至就绪队列的队首

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