题目内容

什么是电工仪表的准确度,我国常用的电工指示仪表的准确度分几级?

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Mother was busy. Although she was not watching the basketball on TV, she()it on the radio.

A. was listening to
B. was hearing
C. was listening

胰腺癌的MRCP表现为胰管呈鼠尾样局限性狭窄,其远侧的胰管明显扩张。

A. 正确
B. 错误

芯片类型取决于内存芯片的工作方式,下列哪项不是常用内存芯片()

A. EDO DRAM
B. DRAM
C. RDRAM
DDR SDRAM

中国城镇职工医疗保险制度改革的标志是1998年国务院颁布的什么决定?

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