chip 如TOP LED

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• chip quntity是什么意思?在LED规格书上看到的.别告诉我写错了,的确是chip quntity,不是quantity.
• chip 如TOP LED
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• 判断下列句子是否是定语从句,并标出定语从句（{ }）、先行词（）及关系词（( )）如：I like {(who) is wearing a red dress.}Do you know who the top student in your class is?I can't temember where I put my dictionary.When the students were all at school,the murder took place.The murder took place at a time when the students were all at school.I wonder why I was not invited to the party.Who is the man talking to our teacher?
• Led chip scrap
• The police caught the thief by f ___(根据首字母提示填空）急!八下七单元的题······
• A policeman fllowed the thief into the supermarket.可以把fllowed改成caught吗?