皮皮学,免费搜题
登录
搜题
【单选题】
将TTL与非门作非门使用,则多余输入端应 ( )
A.
全部接高电平
B.
部分接高电平,部分接地
C.
全部接地
D.
部分接地,部分悬空
拍照语音搜题,微信中搜索"皮皮学"使用
参考答案:
参考解析:
知识点:
.
..
皮皮学刷刷变学霸
举一反三
【简答题】He held the blazing(点燃) matches to a piece of wood. After a while, he became aware that he could smell his hands burning. Then he began to feel the pain. He opened his hands, and the blazing matches f...
【单选题】选用LED指示灯的优点之一是( )
A.
寿命长
B.
发光强
C.
价格低
D.
颜色多
【简答题】根据Text A t填空 Max went to Liverpool by _____1____.The train went 300 miles through the ____2_____ and Max had a wonderful journey, but then he found himself in a little trouble. He couldn’t find the yo...
【判断题】在反接制动的控制线路中,必须采用以时间为变化量进行控制。
A.
正确
B.
错误
【判断题】在反接制动的控制线路中,必须采用以时间为变化量进行控制
A.
正确
B.
错误
【简答题】When Boris left school,he could not find a job.He tried hard and pestered(纠缠)his relatives,but they had problems of their Own. He answered advertisements until he could not afford to buy any more stam...
【单选题】选用LED指示灯的优点之一是()
A.
发光强
B.
用电省
C.
价格低
D.
颜色多
【简答题】阅读理解。 When Boris left school, he could not find a job. He tried hard and pestered (纠缠) his relatives, but they had problems of their own. He answered advertisements until he could not afford to buy an...
【简答题】When Boris left school, he could not find a job. He tried hard and pestered (纠缠) his relatives, but they had problems of their own. He answered advertisements until he could not afford to buy any more...
【简答题】One day somebody sent an elephant. wanted to know its weight,but there was nothing big enough to weigh it on. Chong told his father he could weigh the elephant if he had a big boat a...
相关题目: