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问题 单项选择题

在电动冷却水温度控制系统中，系统受到扰动后，温度表指针左右快速振荡不息，其可能原因是（）。

A.PB太大，脉冲宽度太宽

B.PB太大，Td太短

C.PB太小，Td太大

D.脉冲宽度太宽，不灵敏区太小

答案

参考答案：C

改错题

七、短文改错（共10小题; 每小题0.5分，满分5分）

假如英语课上老师要求同学们交换修改作文，请你修改你同桌写的以下作文。文中

有10处错误，要求你在错误的地方增加、删除或修改某个单词。

增加：在缺词处加一个漏字符号(∧)，并在其下面写上该加的词。

删除：把多余的词用斜线(＼)划掉。

修改：在错的词下划一横线，并在该词下面写上修改后的词。

注意：1. 每处错误及其修改均仅限一词。

2. 只允许修改10处，多者(从11处起)不计分。

Last summer vacation, I worked as a volunteer in a hospital, where I meet a little girl, Rosalyn, who was near eight years old. She just had operation in her leg but had to stay in bed for some time. I was amazing by her courage because she never cried even if she was suffered a great deal of pain. I once noticed her helping a little boy which parents couldn’t come to see him that day. She was sharing her sweets and toys for the boy and telling stories to calm him down. Soon she stopped crying. I wondered that if many grown-ups could be as kind as she was to others!
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问答题

如果某公司将注册驰名商标“报喜鸟”用在饮料商品上，是否构成侵权为什么假设“报喜鸟”商标是未注册的驰名商标，某公司将“报喜鸟”商标用在饮料商品上，是否构成侵杈为什么
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