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单项选择题

电感器用直标法标注最大工作电流时，字母B表示电感器的最大工作电流为（）。

A、50mA
B、100mA
C、150mA
D、300mA

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单项选择题

Choose the one in which the underlined part is closest in meaning to that of the sentence taken from the text. Those who achieve greatness do so not only because of the gifts they were given or the talents they developed, but because they had passion for the adventure that inspired their lives. (Para. 2)
A、This is an absolute gift at that price.
B、The husband gave his wife a necklace as an anniversary gift.
C、She is endowed with the gift of drawing by nature.
D、null

未知题型

图样及技术文件中的比例是指图形及其实物相应要素的线性尺寸之比（）

单项选择题

公司属各单位（部门）应落实（）消防安全自我评估制度，并制定年度消防安全专项检查计划，提高单位检查消除火灾隐患的能力

A.每月
B．每周
C．每日
D．每年

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