At minus 130℃, a living cell can be ______ for a thousand years.A.sparedB.protec
题型:不详难度:来源:
At minus 130℃, a living cell can be ______ for a thousand years.A.spared | B.protected | C.preserved | D.developed |
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答案
C |
解析
动词词义辨析。根据句意,在零下30 度,细胞能保活1000多年。 |
举一反三
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