33 Which part of a MouSensor’s body is most sensitive to the explosives?
(A) The feet.
(B) The skin.
(C) The nose.
(D) The mouth.

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統計： A(22), B(156), C(600), D(39), E(0) #572437

詳解 (共 3 筆)

#1627249
Scientists have gen...
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#1632434

Scientists have genetically modified mice to enable them to sniff out landmines

sniff 是聞，所以選鼻子


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#3628671
 Scientists have genetically基因 modified改造 mice to enable them to sniff嗅 out landmines地雷, the explosives buried just below the surface of the ground. 
They hope the GM mouse, known as MouSensor, could become a useful tool to help deal with the dangerous devices left from past wars. 
        Although it sounds peculiar古怪, similar efforts努力 have already been made. 
A Belgian比利時 charity uses giant巨人  African HeroRats to sniff out the chemical explosive, TNT. 
Two of these rats can clear an area in less than two hours that would take two people two days to do. 
One disadvantage不利因素 of the HeroRat, however, is that it needs nine months’ training before being ready for landmine detection. 
        Scientists wanted to improve on the HeroRat concept概念 by creating a “supersniffer” mouse, MouSensor. 
They found that a receptor受器 in the lab mouse’s nose is sensitive to the odor氣味 of the chemical elements要素 in TNT and landmines.
By altering the genes of the mouse, scientists are able to enhance the capability of its receptor 500 times stronger than before. 
Besides having super sniffing power, the MouSensor is cheaper to manage and easier to breed than the rats. 
        When the MouSensor detects the presence of a landmine, it would have some sort of a seizure類型 and faint暈 because of its extreme sensitivity of the explosives.
And this change of the mouse’s physical condition would trigger引發 a chip晶片 implanted植入 under its skin to send a signal to a computer monitored監測器 by scientists. 
As a result, the location of the landmine could be identified, and a bomb-disposal處理 expert專家 could go in and neutralize失效 it.
The mouse itself would be safe from the landmine, since it would be too small to trigger引發 an explosion.
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