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单项选择题
厂房压气系统提供的高压压缩空气压力为( )
A、5个大气压
B、10个大气压
C、25个大气压
D、30个大气压
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相关考题
问答题
Miston buys goods priced at €50,000 from a Dutch company on 1 November 20X8. The invoice is due for settlement in two equal instalments on 1 December 20X8 and 1 January 20X9.
The exchange rate moved as follows:
1 November 20X8 - 1.63 to
1
31 December 20X8 – 1.64 to $1
What will be the net exchange gain or loss to be reported in the financial statements of Miston at 31 December 20X8?
判断题
555定时器构成施密特触发器,若Vco引脚(5号脚)通过0.01µF的电容接地,则施密特触发器的回差电压为(1/2)Vcc。
单项选择题
儿童佝偻病在初期常出现鸡胸和漏斗胸,主要表现为神经兴奋性增高。
A.对
B.错
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