在一套整流设备中，用霍尔器件检测负载电流。若霍尔器件故障误检

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问题单项选择题

在一套整流设备中，用霍尔器件检测负载电流。若霍尔器件故障误检测负载电流为无穷大。则整流器的输出电压会（）。

A、急降

B、急升

C、不变

答案

参考答案：A

填空题

读短文，写出正确的国家。

I'm dreaming to visit the U. S., Canada, the U. K. and Australia. My plane is flying to the west from Beijing.

So the first country I will visit is ____________. Then my plane is still flying to the west. I can see beautiful

Rocky Mountains on the plane. Now I arrive in ____________. Then I arrive in ____________, the president

Obama meets me at the airport. At last, I land on ____________'s land. Many kangaroos are around me. I'm

glad to see them.

单项选择题

女患者，产后8天，高热汗出，烦躁，斑疹隐隐。舌红绛，苔黄燥，脉弦细而数。治宜：

A．清热解毒，凉血化瘀

B．清营解毒，凉血养阴

C．清热解毒，泻下逐瘀

D．清热解毒，凉营开窍

E．以上都不是