A、A) To read through glass, blindfolded.
B、B) To identify the eol0ar and shape of light on a screen while securely blindfolded.
C、C) To carry out the test with someone pressing on her eyeballs.
D、D) To work from behind a screen, blindfolded and with a card round her neck.
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试题解析
C[试题分析] 事实判断题。[详细解答] 本题答案只需通过词组in the most convincing demonstration of all中的most就很容易判断后面的实验：to read through glass, blindfolded是最persuasive的。因此，答案为C。
