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【判断题】
常用的滴定管、吸量管等不能用去污粉进行刷洗。( )A.
正确
B.
错误
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反馈参考答案：
举一反三
【单选题】Prior to closing the breaker when paralleling two AC generators, the recommended practice is to have the frequency of the incoming machine _____.
A.
slightly less than the line frequency
B.
the same as the line frequency
C.
slightly greater than the line frequency
D.
All of the above
【单选题】Prior to closing the breaker when paralleling two AC generators, the recommended practice is to have the frequency of the incoming machine _____.
A.
slightly less than the line frequency
B.
the same as the line frequency
C.
slightly greater than the line frequency
D.
have nothing to do with the line frequency
【单选题】Prior to closing the breaker when paralleling two AC generators, the recommended practice is to have the frequency of the incoming machine （）
A.
slightly less than the line frequency
B.
the same as the line frequency
C.
slightly greater than the line frequency
D.
All of the above
【单选题】根据以下资料，回答{TSE}题。 某商品流通企业在开业前要选择本企业经营商品的品种，现有甲、乙、丙、丁四大类商品可供选择。由于对未来几年的市场需求无法做到比较准确的预测，只能大致估计为：需求量较高、需求量中等和需求量较低三种情况。三种情况的预计损益值如下表所示。总经理分别要求主管销售和财务的副总经理深入研究各大类商品的投入和产出的关系，并结合各自经验来选择本企业经营商品的品种。 自然状态 各经营品...
A.
甲
B.
乙
C.
丙
D.
丁
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