题目内容

因为万物生长靠太阳,所以必须到日坛祭日,祭日于西郊。

A. 正确
B. 错误

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The phrase when built in the certificate of vessel’s nationality definitely means().

A. when was your vessel built
B. at what time is your vessel building
C. when is your vessel built
D. at what time you built your vessel

后醍醐天皇在1336年又被川端氏驱逐,川端氏在京都建立了一个新的幕府。

A. 正确
B. 错误

Indirect cooling of fuel injector nozzle holders for diesel engines is accomplished primarily by ().

A. heat conduction into the injected fuel oil
B. heat conduction into the water jacket wall
C. water circulation through passages in the holder
D. fuel oil circulation through passages in the holder

交流电磁线圈误接到额定电压相等的直流电源上,或直流电磁线圈误接到额定电压相等的交流电源上,分别有什么后果?为什么?

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