首页
登录
职称英语
The "cloak" scientists have invented [originaltext] (26) Scientists have crea
The "cloak" scientists have invented [originaltext] (26) Scientists have crea
游客
2024-09-29
39
管理
问题
The "cloak" scientists have invented
(26) Scientists have created the first device to render an object invisible in three dimensions. The "cloak" hid an object from detection using light of wavelengths close to those that are visible to humans. Previous devices have been able to hide objects from light traveling in only one direction; viewed from any other angle, the object would remain visible. This is a very early but significant step towards true invisibility cloaks.
选项
A、can keep an object invisible in three dimensions.
B、can hide an object from detection only in one direction.
C、is a true invisibility cloak.
D、is just a minor achievement.
答案
A
解析
转载请注明原文地址:https://tihaiku.com/zcyy/3779227.html
相关试题推荐
Thefinancialanalysisprojecthastobefinishedby[br][originaltext]M:We’v
Thefinancialanalysisprojecthastobefinishedby[originaltext]M:We’vegot
[originaltext]From1946until1954,theVietnamesehadstruggledfortheir
ThemancommittedallthefollowingcrimesEXCEPT______.[br][originaltext]
Whocallsforinternationalmonitors?[br][originaltext]TheWhiteHousei
TheSenatebillaimsto______withinthenextsevenyears.[originaltext]
WhatwasRichardArkwrightwellknownas?[originaltext]RichardArkwright
What’stheexperimentdesignedtodemonstrate?[originaltext]Inourlabtod
Wherehasthewomanbeen?[br][originaltext]M:It’sgoodtoseeyouback.How
Wherehasthewomanbeen?[br][originaltext]M:It’sgoodtoseeyouback.How
随机试题
I______hernottowalkonthethinicebutshewouldn’tlisten.A、suggestedB、hop
MosteconomiesintheUnitedStatesseemcaptivatedbythespellofthefre
Whyisitsodifficulttofallasleepwhenyouareovertired?Thereisnoon
______(他不该无缘无故让我们等了那么长时间),whichisquiteimpolite.Heshouldn’thavekeptusw
规费包括( )。A.养老保险费 B.失业保险费 C.工伤保险费 D.
根据水利工程施工特点和机械分类,土石方机械不包括( )。A.推土机 B.挖掘
若某几何体的三视图(单位:cm)如图所示,则此几何体的体积是________cm
A.心 B.肺 C.脾 D.肝 E.肾"气之恨"是指
1991-156.经脉受阻引起的腰痛,其病因可有 A.感受寒湿B.感受湿热
能引起药物性牙龈增生的药物是A.苯妥英钠 B.硝苯地平 C.环孢素 D.维
最新回复
(
0
)