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[originaltext] When a sleepy driver has trouble with keeping his eyes on the
[originaltext] When a sleepy driver has trouble with keeping his eyes on the
游客
2024-02-26
4
管理
问题
When a sleepy driver has trouble with keeping his eyes on the road and gets too close to another car, an alarm sound will warn the driven If nothing is done, the car will automatically come to a stop and in this way prevent an accident. This is a new device which will soon be tested in an experimental car in Japan (33) . The computer warning system keeps track of a driver’s condition by monitoring his heartbeat with signals transmitted from a band around his wrist (35) . The wrist hand records the drivers’ pulse which measures the heartbeat. Each pulse in the wrist sends a signal to the computer. By analyzing the pulse rate, the computer can determine whether a driver is drunk, sleeping or ill. Devices in other parts of the car can also tell the computer if the car is too close to another vehicle or is moving dangerously. The computer will sound the alarm when a problem arises, and will automatically stop the car if the driver ignores the warning (34) .
选项
A、It can measure the driver’s alcohol level in the blood.
B、It bases its analysis on the driver’s heartbeat.
C、It can quicken the driver’s response to emergencies.
D、It monitors the signals transmitted from the driver% brain.
答案
B
解析
题目问这种电脑系统有何特别之处。从短文中我们可以听到"The computer warning system keeps track of a driver’s condition by monitoring his heartbeat with signals transmitted from a band around his wrist",可见这种电脑系统可以监控驾驶员的心率变化,通过分析心率的变化来确定是否发出警报,这正是其特别之处。
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