thinking in black-and-white terms. A: only if they think the policy is a good one. B: only if the policy change changes the costs of their behavior. C: only if the policy change changes the benefits of their behavior. D: if the policy changes either the costs or benefits of their behavior.

Fat can’t change into muscle ____muscle changes into fat.

我们得不断分析环境变化，看是否有必要改变原来的计划。 A: We must constantly analyze changes in the environment to see if there was a need to change the original program. B: We must constantly analyze changes in the environment to see if there is a need to change the original program. C: We must constantly analyze changes in the environment to see Whether there was a need to change the original program. D: We must constantly analyze changes in the environment to see that if there is a need to change the original program.

7. Due to ( ), the strengths and weaknesses of enterprise resources will change A: Changes in institutions or policies B: Impact of technological progress C: Changes in customer needs D: Changes in consumption patterns

Earth's climate _________ over the centuries. A: will change B: changes C: changed