D It issues an alarm when the driver speaks.
A the overall effectiveness of the detection technology has improved.
C it is impossible to improve the overall effectiveness of the detection system.
5. Which of the following is NOT mentioned in Paragraph 6?
B The car will automatically keep to its lane.
D The technology of the alcohol odor sensor should be improved.
C 选项A、B、D所述内容都可在短文的第一、第二段中找到。第二段最后一个句子告诉我们,传感器装在司机和乘客的座椅里,而不是在点火系统里,所以选择C。
A 第四段描写了安装在概念车仪表板上的照相机的功能。相机跟踪司机的眼睛的活动从而监测司机是否保持清醒状态,如果发现司机需要停车休息,便用英语或日语发出警告。所以除A以外,其他选择都不正确。
B 选项A、C、D在短文第六段都能找到,但是却找不到选项B所表达的意思
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