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  3. Killing a soldier removes one enemy from the battle. Wounding him removes three: the victim and the two who have to carry him fr

Killing a soldier removes one enemy from the battle. Wounding him removes three: the victim and the two who have to carry him fr

admin2021-04-06  3
问题    Killing a soldier removes one enemy from the battle. Wounding him removes three: the victim and the two who have to carry him from the battlefield. That cynical calculation lies behind the design of many weapons that are intended to incapacitate rather than eliminate. But robotics may change the equation.
   The Battlefield Extraction-Assist Robot, or BEAR for short, is a highly agile and powerful mobile robot capable of lifting and carrying a combat casualty from a hazardous area across uneven terrain. When it is not saving lives, it can perform difficult and repetitive tasks, such as loading and unloading bullets.
   The current prototype BEAR is a small, tracked vehicle with two hydraulic arms and a set of video cameras that provide a view of its surroundings to its operator via a wireless link. It has been developed by TATRC (a research center) in collaboration with Vecna Technologies. Daniel Theobald, BEAR’s inventor and Vecna’s boss, says versatility is at the heart of the robot’s design and "the whole idea from the start was to design a general-purpose robot."
   The BEAR’s operator can control the robot in two ways. One, a joystick, can be embedded into the grip of a rifle and manoeuvred by the soldier’s fingertip when he is holding his weapon to his shoulder. The advantage of this is that he does not need to put his gun down to rescue his comrades. The other means of control, a special glove designed by AnthroTronix, can sense the wearer’s hand movements and direct the BEAR accordingly. For example, if the gloved hand moves to the left, the robot will follow. If the hand moves backwards, the robot will slow down or stop.
   Over the past year BEAR has been tested at the army’s battle laboratory. It has shown that it can travel at around 12 mph across a flat surface. It can also move over soil, sand and gravel, through trees and inside buildings, albeit at lower speeds. Several more years of tests are planned, but Dr. Gilbert is optimistic that BEAR will come through them. If it does, soldiers will be able to get on with their primary job of killing the enemy, without having to worry so much about what the enemy has done to their friends.
   
The last sentence of the first paragraph most probably implies that______.
选项 A、the design purpose of weapons will be changed
B、robotics can reduce the number of victims
C、the cynical calculation will be abandoned
D、robotics can alter the situations of battlefield
答案B
解析 推断题。根据题干关键词定位到第一段最后一句。其中“equation”原意为“方程式，等式”。此处指代上文所说的“杀一名士兵会使冲突中减少一个敌人，而伤一名士兵却会减少三个敌人”。此段最后一句But robotics may change the equation．意为“不过，机器人技术或许能改变这种格局”。由此可知B项“机器人能够减少受害者的数目”符合题意，为正确答案。
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