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> 蜂鸣器
"蜂鸣器"相关考试题目
1.
无源蜂鸣器的引脚端有( )。
2.
如果将蜂鸣器接在单片机的P1.0引脚,让蜂鸣器叫,则P1^0=(__)。
3.
PMZG3-A屏蜂鸣器3HAU鸣响的主要原因是()
4.
掘进机蜂鸣器、照明、()应完整齐全,内外喷雾有效。
5.
一般地,蜂鸣器属于()负载?
6.
康达智能电源屏微机监测单元系统告警后,蜂鸣器将一直鸣响,直到故障消失或按了任意键。
7.
电磁炉的蜂鸣器驱动三极管损坏,会引起()的故障。
8.
需要外部振荡源的蜂鸣器是()。
9.
IBP上蜂鸣器的英文是() 。
10.
有源蜂鸣器的工作电压()。
11.
3根线的蜂鸣器如何接?它的工作原理是什么?
12.
蜂鸣器是()信号装置。
13.
Some pessimistic experts feel that the automobile is bound to fall into disuse. They see a day in the not-mo-distant future when all autos will be abandoned and allowed to rust. Other authorities, how...
14.
蜂鸣器功能是做什么用的?
15.
有源蜂鸣器的引脚的极性为长正短负。
16.
金义线站台门门头蜂鸣器未投入使用,接线头必须做绝缘处理。
17.
Some pessimistic experts feel that the automobile is bound to fall into disuse. They see a day in the not-too-distant future when all autos will be abandoned and allowed to rust. Other authorities, ho...
18.
晶体管蜂鸣器的电源为()。
19.
CRH380C(L)型动车组厨房系统漏水时,按蜂鸣器复位按钮后蜂鸣器仅停止报警( )分钟。
20.
Some pessimistic experts feel that the automobile is bound to fall into disuse. They see a day in the not-too-distant future when all autos will be abandoned and allowed to rust. Other authorities, ho...
21.
有源蜂鸣器本身带有电源。
22.
PMZG3-A屏蜂鸣器1HAU鸣响的主要原因是()
23.
无源蜂鸣器只要一通电就会鸣叫。
24.
UPS连接市电的情况下,每次打开UPS,便听到继电器反复的动作声,UPS面板电池电压过低指示灯长亮且蜂鸣器长鸣,该故障是( )。
25.
无源蜂鸣器的两个引脚是等长的。
26.
有源蜂鸣器接直流电是不会工作的。
27.
电子琴的设计中采用的蜂鸣器的类型为( )。
28.
Some pessimistic experts feel that the automobile is bound to fall into disuse. They see a day in the not-too-distant future when all autos will be abandoned and allowed to rust. Other authorities, ho...
29.
无源蜂鸣器是指蜂鸣器内部没带有电源的蜂鸣器。
30.
蜂鸣器按照驱动方式不同分为
31.
PMZG3-A屏蜂鸣器2HAU鸣响的主要原因是()
32.
在报警回路中,有报警信号且按了确认按钮后,报警指示灯和蜂鸣器状态是()
33.
蜂鸣器有哪几种?
34.
The motorcar Some pessimistic experts feel that the automobile is bound to fall into disuse. They see a day in the not-too-distant future when all autos will be abandoned and allowed to rust. Other au...
35.
蜂鸣器按输入信号分为()
36.
Some pessimistic experts feel that the automobile is bound to fall into disuse. They see a day in the not-too-distant future when all autos will be abandoned and allowed to rust. Other authorities, ho...
37.
Some pessimistic experts feel that the automobile is bound to fall into disuse. They see a day in the not-too-distant future when all autos will be abandoned and allowed to rust. Other authorities, ho...
38.
一般地,蜂鸣器属于哪种负载?
39.
Some pessimistic experts fleel that the automobile is bound to fall into disuse.They see a day in the not-too-distant future when all autos will be abandoned and allowed to rust.Other authorities, how...
40.
PMZG3-A屏蜂鸣器3HAU鸣响的主要原因是()
41.
Some pessimistic experts fleel that the automobile is bound to fall into disuse. They see a day in the not-too-distant future when all autos will be abandoned and allowed to rust. Other authorities, h...
42.
Some pessimistic experts feel that the automobile is bound to fall into disuse. They see a day in the not-mo-distant future when all autos will be abandoned and allowed to rust. Other authorities, how...
43.
有源蜂鸣器和无源蜂鸣器中的源是指什么?
44.
无源蜂鸣器是一种自带震荡源的蜂鸣器。
45.
连接有蜂鸣器的主板,在内存和显示卡接触不良时,开机通常会提示:
46.
Some pessimistic experts feel that the automobile is bound to fall into disuse. They see a day in the not-too-distant future when all autos will be abandoned and allowed to rust. Other authorities, ho...
47.
Some pessimistic experts feel that the automobile is bound to fall into disuse. They see a day in the not-mo-distant future when all autos will be abandoned and allowed to rust. Other authorities, how...
48.
实验二 蜂鸣器控制系统
49.
有源蜂鸣器和无源蜂鸣器中的源是指什么?
50.
Some pessimistic experts feel that the automobile is bound to fall into disuse. They see a day in the not-mo-distant future when all autos will be abandoned and allowed to rust. Other authorities, how...