【題目】VR can be used to practise skills in a(n) _____ environment that otherwise would be quite dangerous.

A.virtualB.preciousC.academicD.secure

【答案】D

【解析】

考查形容詞辨析。A. virtual 虛擬的，實質(zhì)上的；B. precious寶貴的；C. academic學(xué)術(shù)的，理論的；D. secure安全的。句意：VR可以用來在一個否則會非常危險的安全環(huán)境中練習(xí)技能。故選D。

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