但是要英语好的哦.

问题描述:

但是要英语好的哦.
In which of the following compounds does the compund contain both ionic and covalent bonds?
A)potassium sulphide
B)sodium hydroxide
C)calcium oxide
D)magnesium chloride

在下列哪些化合物同时包含离子键和共价键
A)硫化钾
B)氢氧化钠
C)氧化钙
D)氯化镁
B