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【多选题】
一般来说，材料结构密实、强度高、孔隙率小、连通孔隙少、表面致密，则抵抗环境破坏能力强，材料的耐久性好。工程上常用（）方法来提高耐久性。
A.
提高密实度
B.
改善表面状态
C.
加快锈蚀
D.
改善孔隙结构
E.
降低温度
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参考答案：
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【单选题】听力原文：W: Hi, John! M: Oh. Hi, Laura. What're you doing here? W: Uh I'm usually here on weekends. It's my Dad's shop. So you're looking for a bike? M: Yeah. Now that the weather's warming up, I thought ...
A.
She's waiting for her father.
B.
She's having her bicycle repaired.
C.
She wanted to surprise John.
D.
She works there.
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【单选题】听力原文：W: Hi, Steven. M: Oh, hi, Hilda. What are you doing here? W: Uh, I'm usually here on weekends. It's my dad's shop. So, you are looking for a bike? M: Yeah. Now the weather is warming up. I though...
A.
to help her father with business
B.
to help Steven choose a bike
C.
to buy herself a bike
D.
to work part time as a salesclerk
查看完整题目与答案
【单选题】He canle to this country for promoting friendship__________for money．
A.
0ther than
B.
more than
C.
better than
D.
rather than
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【简答题】项目描述 当今网上微博、博客发布信息已经成为主要的信息发布、传播的系统,如何对这些数据进行管理,本项目主要是对博客网站中的博文分类信息表、博文信息表进行操作。 博客网站的数据库操作要求如下: 1)创建数据库 BlogDB 。 2)创建分类信息表 categories ,表结构如表 J2-37-1 所示。 表J2-37-1 categories表 字段名 字段说明 数据类型 允许为空 备注 Cate...
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【简答题】Frank Murphy receives a call about deliveryarrangements. Listen to the conversation and complete his notes.
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【单选题】兰竹荔枝一般于( )成熟。
A.
6月下旬成熟
B.
6月中旬成熟
C.
6月上旬成熟
D.
6月上中旬成熟
查看完整题目与答案
【简答题】项目描述 当今网上微博、博客发布信息已经成为主要的信息发布、传播的系统,如何对这些数据进行管理,本项目主要是对博客网站中的博文分类信息表、博文信息表进行操作。 博客网站的数据库操作要求如下: 1)创建数据库 BlogDB 。 2)创建分类信息表 categories ,表结构如表 J2-38-1 所示。 表J2-38-1 categories表 字段名 字段说明 数据类型 允许为空 备注 Cate...
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【单选题】How did Andrew Whiten and his colleagues study the chimpanzees' behaviour?
A.
Through training chimps.
B.
Through comparing three groups of chimps.
C.
Through trapping.
D.
Through controlling three groups of chimps.
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【单选题】听力原文： Patrick Murphy about to receive a ' s degree in engineering, but he still hadn't found the kind of job he was looking for. He was considering the possibility of working as a sales represen...
A.
A ' s degree in business administration.
B.
A ' s degree in engineering.
C.
A bachelor' s degree in engineering.
D.
A doctor's degree in economics.
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【单选题】“电放”情况下交付货物时，收货人出具了保函，收货人（  ）。
A.
应履行解除担保的责任
B.
不需要履行解除担保的责任
C.
在收到提单后换回保函
D.
在收到海运单后换回保函
查看完整题目与答案
相关题目：
【单选题】听力原文：W: Hi, John! M: Oh. Hi, Laura. What're you doing here? W: Uh I'm usually here on weekends. It's my Dad's shop. So you're looking for a bike? M: Yeah. Now that the weather's warming up, I thought ...
A.
She's waiting for her father.
B.
She's having her bicycle repaired.
C.
She wanted to surprise John.
D.
She works there.
查看完整题目与答案
【单选题】听力原文：W: Hi, Steven. M: Oh, hi, Hilda. What are you doing here? W: Uh, I'm usually here on weekends. It's my dad's shop. So, you are looking for a bike? M: Yeah. Now the weather is warming up. I though...
A.
to help her father with business
B.
to help Steven choose a bike
C.
to buy herself a bike
D.
to work part time as a salesclerk
查看完整题目与答案
【单选题】He canle to this country for promoting friendship__________for money．
A.
0ther than
B.
more than
C.
better than
D.
rather than
查看完整题目与答案
【简答题】项目描述 当今网上微博、博客发布信息已经成为主要的信息发布、传播的系统,如何对这些数据进行管理,本项目主要是对博客网站中的博文分类信息表、博文信息表进行操作。 博客网站的数据库操作要求如下: 1)创建数据库 BlogDB 。 2)创建分类信息表 categories ,表结构如表 J2-37-1 所示。 表J2-37-1 categories表 字段名 字段说明 数据类型 允许为空 备注 Cate...
查看完整题目与答案
【简答题】Frank Murphy receives a call about deliveryarrangements. Listen to the conversation and complete his notes.
查看完整题目与答案
【单选题】兰竹荔枝一般于( )成熟。
A.
6月下旬成熟
B.
6月中旬成熟
C.
6月上旬成熟
D.
6月上中旬成熟
查看完整题目与答案
【简答题】项目描述 当今网上微博、博客发布信息已经成为主要的信息发布、传播的系统,如何对这些数据进行管理,本项目主要是对博客网站中的博文分类信息表、博文信息表进行操作。 博客网站的数据库操作要求如下: 1)创建数据库 BlogDB 。 2)创建分类信息表 categories ,表结构如表 J2-38-1 所示。 表J2-38-1 categories表 字段名 字段说明 数据类型 允许为空 备注 Cate...
查看完整题目与答案
【单选题】How did Andrew Whiten and his colleagues study the chimpanzees' behaviour?
A.
Through training chimps.
B.
Through comparing three groups of chimps.
C.
Through trapping.
D.
Through controlling three groups of chimps.
查看完整题目与答案
【单选题】听力原文： Patrick Murphy about to receive a ' s degree in engineering, but he still hadn't found the kind of job he was looking for. He was considering the possibility of working as a sales represen...
A.
A ' s degree in business administration.
B.
A ' s degree in engineering.
C.
A bachelor' s degree in engineering.
D.
A doctor's degree in economics.
查看完整题目与答案
【单选题】“电放”情况下交付货物时，收货人出具了保函，收货人（  ）。
A.
应履行解除担保的责任
B.
不需要履行解除担保的责任
C.
在收到提单后换回保函
D.
在收到海运单后换回保函
查看完整题目与答案
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