衡量一国开放程度的标准是______,它是______与______或______的比率。
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开放经济最简单的定义就是一国参与______的一种经济。
If you promise you won't ____my name, I will tell you the true story.
Are you ____that I am the one to blame? I didn't do anything wrong!
While advertisements do not necessarily present____information, they do make people aware of the availability of products that could improve their lives.