2. 考研
  3. Science is still ______ of the causes of many kinds of cancer.

Science is still ______ of the causes of many kinds of cancer.

admin2009-05-24  69
问题 Science is still ______ of the causes of many kinds of cancer.
选项 A、ignorant
B、unconscious
C、conscious
D、informed
答案A
解析 ignorant可以指"无学识的，愚昧的"，还指"不知道的"；unconscious意为"失去知觉的，不省人事的；无意识的"；conscious意为"有知觉的，意识到的"；informed意为"获悉，告知"。
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