Water at 100 degrees centigrade.A. boiledB. boilsC. has boiledD. was boiling

发布时间：2020-08-16 06:02:14

Water      at 100 degrees centigrade.
A. boiled
B. boils
C. has boiled
D. was boiling

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A. boiled
(答案→)B. boils
C. has boiled
D. was boiling
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