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【单选题】
下面几个选项中不是双稳态触发器的特点？A.
具有记忆功能
B.
输出状态仅取决于当前输入信号的组合
C.
有两个稳定的状态
D.
输出到输入端有反馈线
拍照语音搜题，微信中搜索"皮皮学"使用
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【单选题】听力原文：W: Isn't Mary Ellen a beautiful bride? M: She is indeed. John looks very happy too, doesn't he? He told me that they'll be going to Florida on their honeymoon. Q: Where did this conversation most...
A.
At a wedding.
B.
On a honeymoon.
C.
In Florida.
D.
At an airport.
【单选题】Mary Green is beautiful and arts ___ .
A.
very well
B.
very good
C.
much good
D.
quite good
【简答题】C组阅读 Buy new jeans.docx 根据句子意思,用文中单词填空。 1. The young man showed off his _________ car to his friend which he bought yesterday. 2. Mary is a beautiful girl but she never has skirts. She prefers _______...
【简答题】根据制图规范,虚线一般用来画造型看不见的轮廓线,属于陪遮挡但需要编写部分的轮廓线,其宽度一般取粗实线的( )/1或更细。
【简答题】My name is Mary Green. I live in a new house with my parents. There is a beautiful and a small room for me. I like it very much. Now let me tell you something about my new house. My new house is on a ...
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