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【简答题】
工业机器人按结构形式(坐标形式)分类,一般有四种,分别是()机器人、()机器人、()机器人、()机器人。
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反馈参考答案：
举一反三
【单选题】We are taught that a business letter should be written in a formal style __ in a personal one.
A.
rather than
B.
better than
C.
more than
D.
less than
【单选题】We are taught that a business letter should be written in a formal style______in a personal one.
A.
rather than
B.
other than
C.
better than
D.
less than
【简答题】青皮红肉鱼中的有毒物质 , 主要是因为青皮红肉鱼中天然有较高含量的 _______ 。
【单选题】We are taught that a business letter should be written in a formal style in a personal one.
A.
rather than
B.
more than
C.
better than
D.
less than
【单选题】．We are taught that a business letter should be written in a formal style ____ in a personal one．
A.
less than
B.
other than
C.
better than
D.
rather than
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