问题
选择题
The sun _____________ and the water becomes vapour. [ ]
A. shine
B. shines
C. come
答案
答案：B
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The sun _____________ and the water becomes vapour. [ ]
A. shine
B. shines
C. come
答案：B
3FcS(s)+4H2O(g) △H=a kJ • mol-1