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【简答题】
人们的日常生活离不开金属，高科技新材料的开发和应用也需要金属． （1）根据下图的金属应用实例推断，金属具有的物理性质有 _________ ． （2）日常使用的金属材料多数属于合金．下表列出了一些常见合金的主要成分和性能． 由上表可以推断，与组成合金的纯金属相比，合金的优点一般有（填序号） _________ ． ①强度更低      ②硬度更高        ③熔点更高         ④抗腐蚀性能更好 （3）人们每年要从金属矿物资源中提取数以亿吨计的金属．根据所学化学知识，写出一个生成金属的置换反应化学方程式 _________ ．
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参考答案：
举一反三
【单选题】Mr. Brown’s monthly income has increased _____ 100 dollars.
A.
in
B.
by
C.
at
D.
on
查看完整题目与答案
【单选题】According to the Wynne-Edwards' theory, epideictic behavior. displays serve the function of
A.
determining roosting aggregations.
B.
locating food.
C.
attracting predators.
D.
regulating sexual activity.
查看完整题目与答案
【简答题】A．Put a little more pepper in the soup. B．Serve the soup as it is said in the recipe. C．Taste the soup to see if it needs some more pepper. D．Check the recipe to see if they followed it correctly.
查看完整题目与答案
【单选题】Mr. Brown has too many meetings to ______.
A.
take
B.
join
C.
attend (出席)
查看完整题目与答案
【多选题】旅行社组团旅游,应当与旅游者签订合同,所签合同的内容应有( )方面的明确约定
A.
旅游行程
B.
旅游价格
C.
游览项目的具体内容
D.
旅游服务监督电话
查看完整题目与答案
【简答题】According to Mr. Brown, this incident has caused49______________to his customers, upon whose
查看完整题目与答案
【多选题】旅行社组团旅游，应当与旅游者签订合同，所签合同的内容应有()方面的明确约定。
A.
旅游行程
B.
旅游价格
C.
游览项目的具体内容
D.
旅游服务监督、投诉电话
查看完整题目与答案
【单选题】The Aristotle example is used to make the point that ______.
A.
education should serve the social needs
B.
it is advisable for today's philosophers to know computer science
C.
such abstract subjects as philosophy is no longer useful
D.
universities in the UK have produced too many good for nothing graduates
查看完整题目与答案
【单选题】( )指商品在运送过程中对原有质量(数量、形状、性能)的保证。
A.
商品质量
B.
物流服务质量
C.
物流工作质量
D.
物流客户
查看完整题目与答案
【单选题】Mr. Brown is a hardworking man and he has achieved great success. ---__________.
A.
so is Mr. Green.
B.
So has Mr. Green
C.
It's the same with Mr. Green.
查看完整题目与答案
相关题目：
【单选题】Mr. Brown’s monthly income has increased _____ 100 dollars.
A.
in
B.
by
C.
at
D.
on
查看完整题目与答案
【单选题】According to the Wynne-Edwards' theory, epideictic behavior. displays serve the function of
A.
determining roosting aggregations.
B.
locating food.
C.
attracting predators.
D.
regulating sexual activity.
查看完整题目与答案
【简答题】A．Put a little more pepper in the soup. B．Serve the soup as it is said in the recipe. C．Taste the soup to see if it needs some more pepper. D．Check the recipe to see if they followed it correctly.
查看完整题目与答案
【单选题】Mr. Brown has too many meetings to ______.
A.
take
B.
join
C.
attend (出席)
查看完整题目与答案
【多选题】旅行社组团旅游,应当与旅游者签订合同,所签合同的内容应有( )方面的明确约定
A.
旅游行程
B.
旅游价格
C.
游览项目的具体内容
D.
旅游服务监督电话
查看完整题目与答案
【简答题】According to Mr. Brown, this incident has caused49______________to his customers, upon whose
查看完整题目与答案
【多选题】旅行社组团旅游，应当与旅游者签订合同，所签合同的内容应有()方面的明确约定。
A.
旅游行程
B.
旅游价格
C.
游览项目的具体内容
D.
旅游服务监督、投诉电话
查看完整题目与答案
【单选题】The Aristotle example is used to make the point that ______.
A.
education should serve the social needs
B.
it is advisable for today's philosophers to know computer science
C.
such abstract subjects as philosophy is no longer useful
D.
universities in the UK have produced too many good for nothing graduates
查看完整题目与答案
【单选题】( )指商品在运送过程中对原有质量(数量、形状、性能)的保证。
A.
商品质量
B.
物流服务质量
C.
物流工作质量
D.
物流客户
查看完整题目与答案
【单选题】Mr. Brown is a hardworking man and he has achieved great success. ---__________.
A.
so is Mr. Green.
B.
So has Mr. Green
C.
It's the same with Mr. Green.
查看完整题目与答案
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