首页
登录
职称英语
Periodic realignment of the Earth’s magnetic field occurs two ways: t
Periodic realignment of the Earth’s magnetic field occurs two ways: t
游客
2025-02-22
57
管理
问题
Periodic realignment of the Earth’s magnetic field occurs two ways: the
first, "field regeneration", or the creation of new magnetic fields from the
ambient geomagnetic field, takes place because magnetic field lines are trapped
Line in effective electrical conductors. The field is trapped in molten iron which
(5) moves in response to the forces imposed upon it and as the core moves, the field
lines are stretched and twisted, creating a new magnetic field. The second
process is the diffusion of the magnetic fields: in the same way that a drop of
dye will soon diffuse throughout a swimming pool, a concentration of magnetic
field lines diffuses throughout the planet’s outer core. On the large scale of
(10) stars and planets, the field lines are caught up in the fluid motion and distorted,
generating a new magnetic field before diffusing away. This rarer type of field
reversal is likely caused by unexplained larger changes in the flow in the outer
core, though scientists have suggested such fluctuations may simply be extreme
examples of fluctuations in the dynamo processes-an El Nino in the weather of
(15) the outer core. [br] The author employs all of the following in the passage EXCEPT
选项
A、An illustrative analogy
B、An admission of uncertainty
C、A comparison of processes
D、The coining of a new term
E、A counter-example
答案
E
解析
转载请注明原文地址:https://tihaiku.com/zcyy/3967874.html
相关试题推荐
Acarmanufacturerperiodicallydiscountscertaincarmodelstoitsdealerstoc
X:Whenararebutseriousindustrialaccidentoccurs,peoplerespondbybelievi
Dostrongelectriccurrents,bymeansoftheelectromagneticfieldsthataccompa
FERROUS:A、magneticB、rustyC、withnoironD、hydratedE、non-reactiveC
PeriodicrealignmentoftheEarth’smagneticfieldoccurstwoways:t
PeriodicrealignmentoftheEarth’smagneticfieldoccurstwoways:t
FERROUS:A、magneticB、rustyC、withnoironD、hydratedE、non-reactiveC
The(i)______ofhomingpigeonstosenseEarth’smagneticfieldmayserveas(ii)
Sleepactuallyoccurs(i)______thoughonemayreceivecluessignalingits(ii)__
TheMagneticAttractionofPhysicsIt’samazingwhatyouca
随机试题
圆明园举世闻名,它既展现出传奇般的魅力,又诉说着一段段中国近代史。圆明园占地面积约350公顷,规模宏大,景致迷人。青山叠映,建筑精美,树木花卉郁郁葱葱,一片
Forthispart,youareallowed30minutestowriteashortessayentitledGoodR
根据印花税的有关规定,下列表述不正确的有()。A.自2018年5月1日起,对按
银行业金融机构全面风险管理体系应当包括()要素.A.风险治理架构 B.风险
持续低热,暮热早凉,五心烦热属于()A.热灼营阴证 B.热陷心包证 C
容易进入脑脊液和脑内的药物是A.油/水分配系数接近的药物 B.解离度大的药物
(2019年真题)(一) 一、相关药品生产、经营企业信息 (1)甲是A市的药
根据支付结算法律制度的规定,电子承兑汇票的付款期限自出票日至到期日不能超过的一定
凡需进行绝热的碳钢设备、管道及其附件应设()A.保冷层 B.防潮层 C.保
患者,男性,21岁,车祸伤及右肘部,查体:神志清,右肘肿胀,压痛,半屈位畸形,前
最新回复
(
0
)