研究者目前提出的问题是人们在这类测试中的表现是否基于不同的大脑结构，如果答案是肯定的，那么脑部扫描能否职业选择有帮助呢？

Researchers are now asking whether performance on such tests is based on differences in brain structure, and if so, can brain scans be helpful in choosing a career?

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但是惩罚性的收费凑效的前提是，驾驶者有体面的公共交通系统可以选择，而通常这种选择是没有的。

But punitive charges will work only if the displaced drivers can switch to a decent public transport system. Often they cannot.

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选择有代表性的监测点，是决定监测数据能否对该区域的状况进行描述的前提。

To select representative monitoring points is a prerequisite for deciding whether monitoring data illustrate the said area situation.

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