61. In the experiment, the burning inside the bottle can___.
(A) equalize the air pressure inside and outside
(B) make a seal in the neck of the bottle
(C) finish up the oxygen inside the bottle
(D) produce more oxygen inside the bottle

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步筱昕

B1 · 2014/08/01

#1202299

细节理解题。根据最后一段第一句As the paper burns, it needs oxygen and uses up the oxygen （air） in the bottle. 可知。