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【多选题】
在快走丝线切割加工中,当其他工艺条件不变时,增大开路电压,可以A.
提高切割速度
B.
表面粗糙度变差
C.
增大加工间隙
D.
降低电极丝的损耗
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反馈参考答案：
举一反三
【简答题】下列句式属于A肯定句、B否定句、C常式句、D变式句，请将正确选项填入句后括号内
【简答题】分析下列句子是否属于连谓句。
【单选题】You may try the back door if nobody hears you at the front door.
A.
.knocks
B.
knocking
C.
to knock
D.
knocked
【简答题】Last Sunday the Greens went to the movies. They got home very late. Father opened the front door and went into the house. It was very dark, so mother turned on the light. On the way to their bedroom, ...
【简答题】Whether you come through the front door, or sail right up to the dock, you’ll enjoy this wonderful restaurant, where the fish and other seafood are fresh and truly a treasure.(翻译)
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