皮皮学，免费搜题
登录
搜题
【多选题】
简单表决器功能,以下说法正确的有( )A.
只按下S2、S3，LED1灯不亮，蜂鸣器无声，表决不通过
B.
S1、S2按下，LED1灯亮，蜂鸣器发出声音，表决通过
C.
S1、S3按下，LED1灯亮，蜂鸣器发出声音，表决通过
D.
同时按下S1、S2、S3，LED1灯亮，蜂鸣器发出声音，表决通过
手机使用
分享
复制链接
新浪微博
分享QQ
微信扫一扫
反馈参考答案：
举一反三
【判断题】“Enjoyed” is too mild a word, really; I walked on air. 说真的,“开心”这个词还足以表达我的心情;我简直是陶醉了。
A.
正确
B.
错误
【简答题】Without proper planning, tourism can cause problems . For example , too many tourists can crowd public places that are also enjoyed by the inhabitants of a country . If tourists create too much traffi...
【简答题】Without proper planning, tourism can cause problems. For example, too many tourists can crowd public places that are also enjoyed by the inhabitants of a country. If tourists create too much traffic, ...
【简答题】Without proper planning, tourism can cause problems. For example, too many tourists can crowd public places that are also enjoyed by the inhabitants of a country. If tourists create too much traffic, ...
【判断题】“Enjoyed” is too mild a word, really; I walked on air.说真的,“开心”这个词还不足以表达我的心情;我感觉自己像走在空中。
A.
正确
B.
错误
相关题目：
参考解析：
知识点：
题目纠错 0
发布
