当我们为认证考试编写问题时，我们也编写练习问题。

When we write questions for the certification exams, we also write practice questions.

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在我的认证考试学习指南中，我会尝试创建尽可能接近真实考试问题的练习问题。

In my certification exam study guides, I try to create practice questions that are as close to the real exam questions as possible.

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他承认，练习确实会改变大脑，但值得怀疑的是认定这些改变会影响负责空间推理或数学问题等其他大脑区域的主张。

Practice does change the brain, he allows, but what is questionable is the assertion that these changes affect other brain regions, such as those responsible for spatial reasoning or math problems.

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In addition to many lectures, we have the working groups pleased to do both experiments and to do problem-solving exercises.

我们不仅有讲座，还有不同的小组,他们将做实验,和解决问题的练习。

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But practice this, because it's something that's such an easy way to ask such a variety of questions.

但是你仍然需要好好练习，因为这个简单的用法能够提出各种各样的问题。

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And this is the same periodic table that you're going to get in your exams, so it's good to practice doing your problem-sets with that periodic table so you're not relying on having the double check right there of seeing what the electron configuration is.

这也是你们考试时会用到的相同的表,这样你们就不会，所以使用周期表来做问题集,是很好的练习,这样你们就,不会依赖于再次确认,电子构型是什么了。

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