At minus 130℃, a living cell can be ______ for a thousand years.
At minus 130℃, a living cell can be ______ for a thousand years.
A.spared
B.protected
C.preserved
D.developed
答案及解析: C
句意:在零下130℃,一个活细胞可以保存一千年。spare抽出(时间),省得,免去,吝惜;protect保护;preserve保护,保存;develop发展,研制。根据句意选C。