题目内容
(请给出正确答案)
[单选题]
Technical reports, one kind of government publications, are usually issued by one of the following agencies. What is it?
A.DOE
B.GPO
C.NTIS
D.NASA
提问人:网友cain3408
发布时间:2022-01-07
A.DOE
B.GPO
C.NTIS
D.NASA
A、Western religion
B、Chinese religions
C、---
D、---
A、always 180° out of phase
B、180° out of phase in all but one amplifier configuration
C、in phase in all but one amplifier configuration
D、always in phase
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