问题
不定项选择题
化学概念在逻辑上存在如图所示关系,对下列概念间的关系说法正确的是

A. 纯净物与混合物属于并列关系
B.单质与化合物属于交叉关系
C.化合物与氧化物属于包含关系
D.氧化反应与化合反应属于并列关系
答案
AC
化学概念在逻辑上存在如图所示关系,对下列概念间的关系说法正确的是
A. 纯净物与混合物属于并列关系
B.单质与化合物属于交叉关系
C.化合物与氧化物属于包含关系
D.氧化反应与化合反应属于并列关系
AC
阅读理解。 | ||||||||||||
请根据短文内容填写表格。 Bill has a brother Tom and a sister Lily. They have meals together every day. Bill and Tom like apples but Lily doesn’t like them. Lily likes carrots, but Bill hates them. Tom likes fruits but he doesn’t like vegetables. So their parents think they are not very healthy. | ||||||||||||
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