试题与答案

1kcal的热能相当于()。 A.239kJ B.0.239kJ C.4.184kJ

题型:单项选择题 A1/A2型题

题目:

1kcal的热能相当于()。

A.239kJ

B.0.239kJ

C.4.184kJ

D.4.184MJ

E.23.9kJ

答案:

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