试说明下面物品一般是用什么材料制成的（用代号表示）汽车轮胎；用18 K金制成的戒

发布时间：2017-04-26 14:32 │ 来源：www.tikuol.com

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问题：

试说明下面物品一般是用什么材料制成的（用代号表示）汽车轮胎；用18 K金制成的戒指；喝茶的紫砂壶；炒菜锅的手柄。

A塑料 B陶瓷 C合金 D橡胶

考点：白色污染化学图标合成有机高分子材料

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What to Bring When Visiting Lijiang of Yunnan
Welcome to Lijiang. Lijiang is a nice place to visit. If you visit Lijiang, you’d better do as the following.

Needs	Reasons
1. Hat and sunglasses	The Lijiang’s sun can be quite shiny even during winter, so remember to bring a hat and sunglasses.
2. Raincoat or umbrella	It’s hard for us to know Lijiang’s weather, so it is necessary to bring an umbrella or a raincoat to Lijiang, even if it is sunny.
3. Water	A day in Lijiang you may be very thirsty, so make sure that you bring a bottle of water with you.
4. Camera	There will be lots of chances to take photos on your visit to Lijiang, so make sure to bring your camera. Don’t forget to bring more batteries so that you won’t miss anything!
5. Watch	There are many sights and gift shops in Lijiang. Bring a watch, so you can arrange (安排) your time.

小题1:According to the passage, what things do you not have to bring when you visit Lijiang?

A．A bottle of water.

小题2:What’s the weather like in Lijiang?

A．It’s warm.

B．It’s hot.

C．It changes a lot.

D．It’s rainy.

小题3:Why do you need to bring a watch when you visit Lijiang?

A．Because you must go back home on time.

B．Because you can use your time better.

C．Because you will look cool with a watch.

D．Because you will feel free.

小题4:Which statement is NOT TRUE according to the passage?

A．You don’t have to bring an umbrella or a raincoat to Lijiang when it is sunny.

B．You should bring more batteries so that you can take more interesting pictures.

C．You often wear sunglasses and a hat in Lijiang because the sun is too bright.

D．You should bring a bottle of water so that you won’t be thirsty.

小题5: What kind of passage is it?

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毛 * * 同志指出：“世界就是这样一个辩证法，又动又不动，静是不动没有，静是动也没有。”这告诉我们 [ ]

A、世界上一切事物都是绝对运动

B、世界上的事物具有相对静止性

C、世界上一切事物是绝对运动和相对静止的统一

D、物质和运动是不可分的

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唐朝是中国古代繁荣与开放的朝代，它政策开明，经济繁荣，文化发达，声名远播四海，是中国历史上令人振奋的一段时期。请结合所学知识完成下列有关唐朝历史主题的探究并回答相关问题。

【贞观之治】

君之所以明者，兼听也，其所以暗者，偏信也。 ——魏征

（1）贞观之治时期的皇帝是谁？上则材料反映了贞观之治哪一方面的内容？

__________________________________________________________________

【技术创新】


A
B

（2）唐朝经济繁荣，农业生产工具有很大改进。请依据图A和图B分别写出当时便于耕作和灌溉的生产工具名称。___________________________________________________________________【和同一家】贞观十五年（641年）正月，……松赞干布亲自到柏海迎接公主。回到吐蕃后，他对亲近的人说：“我祖、父未有通婚上国者，今我得尚大唐公主，为幸实多。”——选自《中华上下五千年》（ 3）吐蕃人是今天哪个少数民族的祖先？材料中的“公主”是指谁？___________________________________________________________________

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、如图所示，M、N为两条交流输电线，甲、乙两图是配电室中的互感器和交流电表的两种接线示意图，以下说法正确的是( )

A．甲图中的电表是交流电压表，乙图中的电表是交流电流表

B．甲图中的电表是交流电流表，乙图中的电表是交流电压表

C．在乙图中，线圈N₄的导线一定比线圈N₃的导线粗

D．甲、乙两图中的电表均为交流电流表

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根据原料的特点，采用不同的烹饪技法，菜肴口味随之变化无穷。扒类菜肴的特点主要是（）。

A.香甜软糯

B.原汁原味

C.外酥里嫩

D.质地酥烂

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