
提问人:网友w*****2
发布时间:2023年1月1日 20:37
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任何运行中的星形接线设备的中性点,应视为带电设备。
A . 正确
B . 错误


A . 正确
B . 错误
英译汉
Straight-chain hydrocarbons: A hydrocarbon in which all carbon atoms are sp3-hybridized is a member of the class of alkanes, designated by the suffix –ane. When a double bond is present, the suffix is -ene, and the compound is an alkene. When a triple bond is present, the suffix is –yne, and the compound is an alkyne. The root names indicating the number of carbon atoms in the longest continuous chain are derived from Greek or Latin, except for the first four members of the series. For a cyclic structure, the prefix cyclo- is inserted before the root. Table X gives some skeletons and names of hydrocarbons. Comparable names apply to larger systems.
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