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问题 单项选择题

无效劳动合同指的是劳动合同虽经过当事人双方同意订立，但因劳动合同条款违反（）要求，因而不具有法律效力。

A.当事人本来意愿

B.法律、行政法规

C.职业道德

D.平等原则

答案

参考答案：B

单项选择题

With the publication of ________, Theodore Dreiser was launching himself upon a long career that would ultimately make him one of the most significant American writers of the school later known as literary naturalism.

A．Sister Carrie

B．The Titan

C．An American Tragedy

D．The Stoic
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单项选择题

企业某种原材料的年需求量为8000吨，单价为10000元/吨，单次订货费用为400元，每吨年保管费率为1.6%，则该种原材料的经济订货批量为（）吨。

A.100 

B.150 

C.200 

D.250
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