首页
登录
职称英语
Scientists who believe cell phones are dangerous have been throwing out hypo
Scientists who believe cell phones are dangerous have been throwing out hypo
游客
2023-11-17
52
管理
问题
Scientists who believe cell phones are dangerous have been throwing out hypotheses to explain away the negative results. Maybe something about the【1】animals raised their rates of cancer or sperm problems, so【2】the exposed animals didn’t seem to be harmed. Maybe the studies should have used pulsed,【3】radiation rather than a continuous beam, the better to【4】the way we actually use mobile phones. Maybe it matters【5】the lab animals are zapped【6】in a device like a Ferris wheel or while【7】around in cages. On the other hand, if these details do【8】, maybe that in itself is significant.
Scientists who【9】claims that cell-phone radiation is causing an epidemic of brain cancer【10】that there isn’t any mechanism.【11】textbook biophysics, only radiation that has enough energy to ionize molecules—that is, knock off electrons—can【12】cancer. Cell phones don’t【13】energy great enough to ionize molecules in living cells. Their【14】is "far below the cancer energy threshold,"【15】physicist Robert Park of the University of Maryland, who often【16】junk science. But whenever he makes that【17】in his What’s New e-newsletter, he gets【18】with angry responses insisting there are other ways low-energy radiation can【19】"I don’t like cell phones and I don’t like writing about cell phones," says Park,【20】the damned issue just won’t go away. " [br]
选项
A、when
B、which
C、where
D、whether
答案
D
解析
语法题。“实验室动物是否被杀很关键”。
转载请注明原文地址:https://tihaiku.com/zcyy/3194096.html
相关试题推荐
Somepeoplebelievethatinternationalsportcreatesgoodwillbetweenthen
Somepeoplebelievethatinternationalsportcreatesgoodwillbetweenthen
Somescientistsaredubiousoftheclaimthatorganisms______withageasanin
OfficialssaywaterlevelsalongtheBrahmaputraRiverstillareatdangerousle
Since1970,millionsofenthusiasts______asubstancewhichtheybelievecanre
Hewasoneofthegreatestscientiststheworldhaseverknown,yetifIh
Hewasoneofthegreatestscientiststheworldhaseverknown,yetifIh
Hewasoneofthegreatestscientiststheworldhaseverknown,yetifIh
Hewasoneofthegreatestscientiststheworldhaseverknown,yetifIh
Hewasoneofthegreatestscientiststheworldhaseverknown,yetifIh
随机试题
•Youwillhearapresenteronaradioprogrammegivinginformationaboutsomew
CompletethefollowingsummaryofthelastfourparagraphsofReadingPassage1
下列各项中,既属于不动产物权,又属于用益物权的是()。A.房屋所有权 B.林木
信用卡行为评分卡通过分析客户使用信用卡的历史数据,建立模型对客户进行评分,自动输
财务比率分析的基本内容包括( )。 Ⅰ.偿债能力分析 Ⅱ.营运能力分析
对于电视、电影、互联网资料、公共网站链接形式的宣传材料的影像显示应至少为()。
β内酰胺类抗生素的抗菌机制是A.影响胞浆膜的通透性 B.抑制细菌细胞壁的合成
某设计使用年限为50年的木结构办公建筑中,有一轴心受压柱,两端铰接,使用未经切削
2月3日,刘某因扰乱公共秩序,被县公安局处以拘留10日的行政处罚。刘某不服提起行
下列子分部工程,属于主体结构分部的有()A、混凝土基础B、混凝土结构C、砌体
最新回复
(
0
)