首页
登录
职称英语
Warning: Holding a cell phone against your ear or storing it in your pocket
Warning: Holding a cell phone against your ear or storing it in your pocket
游客
2023-11-03
22
管理
问题
Warning: Holding a cell phone against your ear or storing it in your pocket may be hazardous to your health.
This paraphrases a warning that cell phone manufacturers include in the small print that is often【C1】______ when a new phone is purchased. Apple, 【C2】______, doesn’t want iPhones to come closer to you than 1.5 centimeters; Research In Motion, BlackBerry’s manufacturer,【C3】______2.5 centimeters.
If health issues【C4】______cell phone use, the implications are huge. According to a recent survey,Americans chat【C5】______cell phones 2.26 trillion minutes annually, which【C6】______ $100 billion for the wireless carriers. Epidemiologists(流行病学家)pointed out that brain cancer is a( n) 【C7】______. Overall, there has not been a(n) 【C8】______ in its incidence since cell phones arrived. But the average【C9】______an increase in brain cancer in the 20-to-29 age group【C10】______a drop for the older population.
"Most cancers have【C11】______causes," an expert says,【C12】______she points to laboratory research that suggests low-energy radiation could damage cells that could possibly lead to cancer.
Besides, children are more【C13】______ to radiation than adults, other scientists point out. Radiation that【C14】______only five centimeters into the brain of an adult will reach much deeper into the brains of children because their skulls are thinner and their brains【C15】______ more absorptive fluid.
Henry Lai ,a research professor at the University of Washington,began laboratory radiation studies in 1980 and found that rats【C16】______ radio frequency radiation had【C17】______DNA in their brains.
Ms. Davis recommends【C18】______wired headsets or the phone’s speaker. Children should text【C19】______ call, she said, and pregnant women should keep phones away from the abdomen【C20】______. [br] 【C10】
选项
A、when
B、though
C、while
D、however
答案
C
解析
语篇衔接题。根据后面的单词drop可以判断,前后两个分句应该是转折关系,因此答案为[C]while,意为“然而,相反的是”。[A]when表示“与此同时”,与本句的逻辑关系不符;[B]though是一个从属连词,表示“虽然”,应该用来引导前面那个分句;[D]however是副词,不能放在两个句子之间进行连接,故上述三个选项均可排除。
转载请注明原文地址:https://tihaiku.com/zcyy/3154242.html
相关试题推荐
Warning:Holdingacellphoneagainstyourearorstoringitinyourpocket
Warning:Holdingacellphoneagainstyourearorstoringitinyourpocket
Warning:Holdingacellphoneagainstyourearorstoringitinyourpocket
Warning:Holdingacellphoneagainstyourearorstoringitinyourpocket
Warning:Holdingacellphoneagainstyourearorstoringitinyourpocket
Warning:Holdingacellphoneagainstyourearorstoringitinyourpocket
Warning:Holdingacellphoneagainstyourearorstoringitinyourpocket
Warning:Holdingacellphoneagainstyourearorstoringitinyourpocket
Warning:Holdingacellphoneagainstyourearorstoringitinyourpocket
Warning:Holdingacellphoneagainstyourearorstoringitinyourpocket
随机试题
Thedestructionofournaturalresourcesandcontaminationofourfoodsuppl
Theviewthat"thereisnodirectlinkbetweenlinguisticformandwhatitrefer
下列关于剩余股利政策优缺点的说法中,不正确的有( )。A.有利于保持最佳资本结
A.心绞痛发作时,心电图示此导联ST段抬高 B.增加心肌需氧量为因素诱发的心绞
Thechangeinthatvillagewasmiraculou
患者女性,38岁,近5天来间歇性寒战、高热、头痛,持续4~6小时,大量出汗后体温
可以承接30万平方米以下的住宅项目和8万平方米以下的非住宅项目的物业管理业务的是
Webelievethat_________recentchanges
量化交易模型实盘交易前一般需要进行历史数据的回测。
舌体边缘的淋巴管部分引流至下颌下淋巴结,另一部分至A.颏下淋巴结 B.下颌下淋
最新回复
(
0
)