题干

合金是由____ (或____ )熔合而成的具有____ 的物质,与各成分的金属相比,其特点为硬度比纯金属____ ,熔点比比各成分金属____ .

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答案(点此获取答案解析)

金属,非金属,金属特性,大,低

同类题1

还原句子。根据材料内容,从方框中选择恰当的句子填入文中空缺处,使短文意思通顺、内容完整。   

    TFK Kid Reporter Dahlia Suiter spoke with the writer of Writer to Writer: From Think to Ink.

    You just said that you didn't think you'd become a writer. Why?

    I didn't know what I would be. There were times when I wanted to be a scientist. I loved reading about biology.

    ①____

    I never thought about writing stories for adults (成年人). It was always for children because when I was a child, books were so important to me.

    ②____

    Revision(修改) is my favorite part. If I can add (增加) something surprising at the same time, I'm happy about that, too.

    ③____

    Writing is hard, and if you're not having fun with it, why do it? "Save ( 保存) what you write" is very important because you may need it. You may need that part you cut.

    ④____

    I hope the book will open up new places to go with writing.

    ⑤____

    Yes. Writing can be a good way to discover (发现) yourself. You learn about yourself when you write. Writing also slows your thinking down, and you can make discoveries and go places that you don't expect.

A. Do you think it's very important for kids to practice writing?

B. What do you hope kids will learn from Writer to Writer?

C. Why did you write "Have fun, and save what you write!" at the end of each part in Writer to Writer?

D. What do you enjoy most about writing?

E. Why do you write children's books?

同类题4

下表中,新中国工业总产值的社会主义公有制经济成分高达100%的主要原因是(  )
1956年国民经济中公私经济成分的比例
项目
社会主义公有制经济
私有制经济
国民收入
92.9%
7.1%
工业总产值
100%

商品零售额
95.8%
4.2%