正确答案: D
呈弱碱性
题目:婴幼儿食用添加三聚氰胺的奶粉易患肾结石。下列描述属于三聚氰胺化学性质的是( )
解析:D
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举一反三的答案和解析:
[单选题]联系上下文,对第③段画线句的作用理解不恰当的一项是( )(3分)
渲染夏夜的静谧气氛,表现“我”坚持听收音机的顽强性格。
[单选题]4.June Ist is __________.
Children’s Day
解析:4.C【解析】June lst意为“6月1日”,选项A指。愚人节”,选项B指“妇女节”,选项C指“儿童节”,选项D指“国庆节”。根据常识可知6月1 日是儿童节,故正确答案是C。
[单选题]What does the author advise people to do ?
Follow their natural sleep rhythm.
[单选题]52.
bad
解析:52.C 【解析】由后句中的“sad"和“lost my confidence"可知应是got a bad result in an exam,得了一个不理想的考试成绩。
[单选题]屈原被定为世界文化名人的最主要依据是他
创造出新体诗歌,著有《离骚》
[单选题]25. What's the best title of the passage?
A comfortable trip to Tibet
解析:25.D【解析】本文主要介绍了优质的西藏旅途服务。故选D。
[单选题]Which is the correct way to act in an earthquake?
When you stay under a strong piece of furniture, you should hold on to it and be prepared to move with it.
[单选题]Our school has a speech contest ________May 4th.
on
解析:1.B 【解析】在具体的某一天用on.