B.They may have been caused by the damage to the radio systems.
C.They were suspected to have resulted from electromagnetic interference.
D.They were proved to have been caused by the passengers’ portable computers.
14.Few airlines want to impose(强加)a total ban on their passengers using electronic devices because
.
A.they have other effective safety measures to fall back on
B.they don’t believe there is such a danger as radio interference
C.the harmful effect of electromagnetic interference is yet to be proved
D.most passengers refuse to take a plane which bans the use of radio and cassette players
15.Why is it difficult to predict the possible effects of electromagnetic fields on an airplane’s computers?
A.Because experts lack adequate equipment to do such research.
B.Because it is extremely dangerous to conduct such research on an airplane.
C.Because it remains a mystery what wavelengths are liable to be interfered with.
D.Because research scientists have not been able to produce the same effects in labs.—15
DDCD
CBAD
BAAC
CCD
【山西省2017高考英语二轮复习专题训练:阅读理解(12)】相关文章:
★ 山西省2017高考英语二轮复习专题训练:阅读理解(39)
★ 湖南省汝城二中2014届高考英语一轮复习阅读训练 (80)
★ 湖南省长沙县实验中学2016届高三英语二轮复习书面表达复习重点话题指导专题08 健康饮食话题指导(教师版)
★ 2014高考英语(新人教版)一轮基础训练(4)A、B卷(附答案或解析)
★ 【课堂新坐标】2017届高考英语(通用版)二轮复习短文改错专题训练:考法2 句法错误(含解析)
★ 湖南省汝城二中2014届高考英语一轮复习阅读训练 (44)
★ 2014届高考英语一轮复习课时作业(三十九)选修7Module 3《Literature》(外研版)
★ 山西省永济市涑北中学高三英语总复习:美文欣赏(2)(SandandStone)
★ 安徽省淮南市2014高考英语一轮单项选择及文章训练(14)及答案
最新
2017-04-24
2017-04-24
2017-04-24
2017-04-24
2017-04-21
2017-04-21