A-A+
Every chemical change either results from ener
问题详情
Every chemical change either results from energy being used to produce the change or causes energy to be ______ in some form.
A．given off
B．put out
C．set off
D．used up请帮忙给出正确答案和分析，谢谢！
参考答案
正确答案：A
解析：动词词组辨析。A)givenoff表示“释放”；B)putout表示“使熄灭，生产”；C)setoff表示“启程；使爆炸”；D)usedup表示“耗尽”。
