首页
登录
职称英语
[originaltext] Recent research has claimed that an excess of positive ions i
[originaltext] Recent research has claimed that an excess of positive ions i
游客
2024-06-08
26
管理
问题
Recent research has claimed that an excess of positive ions in the air can have an ill-effect on people’s physical or psychological health. What are positive ions? Well, the air is full of ions, electrically charged particles, and generally there is a rough balance between the positive and the negative charges. But sometimes this balance becomes disturbed and a larger proportion of positive ions are found. This happens naturally before thunderstorms, earthquakes or when winds are blowing in certain countries. Or it can be caused by a build-up of static electricity indoors from carpets or clothing made of man-made fibers, or from TV sets, duplicators or computer display screens.
When a large number of positive ions are present in the air many people experience unpleasant effects such as headaches, fatigue, irritability, and some particularly sensitive people suffer nausea or even mental disturbance. Animals are also found to be affected, particularly before earthquakes; snakes have been observed to come out of hibernation, rats to flee from their burrows, dogs howl and cats jump about unaccountably. This has led the US Geographical Survey to fund a network of volunteers to watch animals in an effort to foresee such disasters before they hit vulnerable areas such as California.
Conversely, when large numbers of negative ions are present, people have a feeling of well-being. Natural conditions that produce these large amounts are near the sea, close to waterfalls or fountains, or in any place where water is sprayed, or forms a spray. This probably accounts for the beneficial effect of a holiday by the sea, or in the mountains with tumbling streams or waterfalls.
选项
A、They are becoming insane.
B、They feel rather bad-tempered.
C、They become violently aggressive.
D、They are suffering toothache.
答案
B
解析
转载请注明原文地址:https://tihaiku.com/zcyy/3624650.html
相关试题推荐
Yourassignmentsthistermwillbetowritetwomajorresearchpapers.Oneo
Yourassignmentsthistermwillbetowritetwomajorresearchpapers.Oneo
Yourassignmentsthistermwillbetowritetwomajorresearchpapers.Oneo
Yourassignmentsthistermwillbetowritetwomajorresearchpapers.Oneo
Yourassignmentsthistermwillbetowritetwomajorresearchpapers.Oneo
[originaltext]Workinglonghourscangreatlyincreasetheriskofsuffering
[originaltext]Workinglonghourscangreatlyincreasetheriskofsuffering
[originaltext]Wecontinuethefirstinanewseriesofreportsfromtimeto
[originaltext]Wecontinuethefirstinanewseriesofreportsfromtimeto
[originaltext]M:ElizabethVega’smockindictmentappearsinanewbookentitl
随机试题
Canyouexplainthis______oftenyearsinyourjobhistorywhichyouhavenotac
Sandymadequiteanumberof(apply)______foramanagementpositionbutfailede
患者男性,60岁。反复上腹隐痛、腹胀5年,多在进食油腻食物后发作,并向右肩背部放
回阳救急汤除回阳救急外,还具有的功用是A.益气养阴 B.养血通脉 C.益气生
具有抗焦虑作用的药物是A:螺内酯 B:呋塞米 C:丙米嗪 D:地尔硫 E
关于库存控制方法的说法,正确的是()。A:定量控制法要求企业随机向供货商发出固定
企业招聘大批的初级技术人员。最适合的招聘渠道是( )。A.校园招聘 B.猎头
案例六: 一般资料:求助者,女性,31岁,已婚,大学文化程度,某公司部门经理。
(2014年真题)税务所可以在一定限额以下实施罚款作为税务行政处罚,该限额为(
案例分析二 【背景资料】 某基础工程公司因现有挖掘机中有10台已超过经济寿
最新回复
(
0
)