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搜题
【单选题】
驼峰信号机按钮定位接电串连接入信号励磁电路是为了防止（）A.
信号转换时瞬间乱显示
B.
信号错误升级
C.
信号开放不着
D.
同时开放两种不同意义的显示
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知识点：
皮皮学刷刷变学霸
举一反三
【单选题】The method of section-by-section is especially useful when introducing a museum or a ________ project.
A.
small
B.
large
C.
middle
D.
little
【单选题】When first ___________to the market, these products enjoyed great success. [ ]
A.
introducing
B.
introduced
C.
introduce
D.
being introduced
【简答题】灰化完全标准是什么,样品表现什么颜色?
【单选题】In English culture, the introduction rule “____” is correct.
A.
When introducing two males or two females, put the younger person's name first
B.
Men don't have to take off their gloves before shaking hands
C.
When a man and a woman are to shake hands, it is the man who extends his hand first
D.
When introductions are made , start with first names, and add some descriptive notes
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