We're all familiar with typical IQ tests that rate your intelligence level after you've answered 40 standardized questions.

我们都很熟悉典型的智商测试，在回答完 40 个标准化问题后，就能评定出你的智力水平。

The typical test circuit is shown in Figure 1 and the characteristics of the pulse is shown in Figure 4.

典型测试电路如图1所示，脉冲特性如图4所示。