题目内容：
[填空题,11.1分] 电源电压为+12V的555定时器、组成施密特触发器，控制端开路，则该触发器的回差电 压△VT为（ ）。参考答案：
选择题：[填空题,11.1分] 电源电压为+12V的555定时器、组成施密特触发器，控制端开路，则该触发器的
- 题目分类：河南理工大学-机械设计制造及其自动化-数字电子技术
- 题目类型：选择题
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This time tomorrow,I_on the beach,enjoying the sun
This time tomorrow,I_on the beach,enjoying the sunshine!A.am sittingB. sitC.woul
[填空题,12.5分] 图中为CMOS门电路，其输出为（）状态
[填空题,12.5分] 图中为CMOS门电路，其输出为（）状态
I sent him the package yesterday.Heit by now.A.rec
I sent him the package yesterday.Heit by now.A.receivesB.receivedC.will receiveD
The situation is quite serious and will become eve
The situation is quite serious and will become even worse unless some measuresA.
以下程序运行后的输出结果是 （ ）main() {int i=5
以下程序运行后的输出结果是 （ ）main() {int i=5 ; switch(i) {case 0: printf (