A推理判断题。根据第一段中“But new research shows that the brain is more like a muscle—it changes and gets stronger when you use it.”可推知，正确答案为A即：Training muscles is compared to using the brain.

　　考点：科普说明文的阅读

　　VII. 阅读理解（七选五） (共5小题；每小题2分，满分10分)

　　根据内容，从选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。

　　Although problems are a part of our lives, it certainly doesn’t mean that we let them rule our lives forever. One day or the other, you’ll have to stand up and say – problem, I don’t want you in my life.

　　Problems with friends, parents, girlfriends, husbands, and children – the list goes on. Apart from these, the inner conflicts within ourselves work, too. These keep adding to our problems. Problems come in different shapes and colors and feelings.

　　But good news is that all problems can be dealt with. Now read on to know how to solve your problems.

　　Talk, it really helps. What most of us think is that our problem can be understood only by us and that no talking is going to help.

　　2

　　Talking helps you move on and let go.

　　Write your problems.

　　3

　　When you write down your problems, you are setting free all the tension from your system. You can try throwing away the paper on which you wrote your problems. By doing this, imagine yourself throwing away the problems from your life.

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