2. 考研
  3. Every chemical change either results from energy being used to produce the change, or causes energy to be ______ in some form.

Every chemical change either results from energy being used to produce the change, or causes energy to be ______ in some form.

admin2008-12-26  92
问题 Every chemical change either results from energy being used to produce the change, or causes energy to be ______ in some form.
选项 A、given off
B、put out
C、set off
D、used up
答案A
解析 本题为短语动词词义辨析题。give off意为"放出，发出"；put out意为"扑灭；生产"；set off意为"出发，开始"；use up意为"用完，耗尽"。根据题意，化学反应不是由某一能量引发就是反应本身引发某一能量的释放，故选项given off为正确答案。
转载请注明原文地址:https://kaotiyun.com/show/kMi4777K
0

考研英语一

相关试题推荐
随机试题
最新回复(0)