题目内容

Most dogs love performing tricks for you topleasantly accept that you are in charge.Why do pet dogs love performing tricks fortheir masters?

A. To avoid being punished.
B. To show their affection for their masters.
C. To win leadership of the dog pack.
D. To show their willingness to obey.

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I wanted to open my eyes and expandmy vision by interacting with people who weren’tstudying science or engineering.According to the author, by interacting withpeople who study liberal arts, engineering studentscan _______.

A. balance engineering and the liberal arts
B. receive guidance in their careers
C. become noble idealists
D. broaden their horizons

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In many areas, the East Coast especially, recyclingis already the least expensive waste-managementoption.Recycling has become the first choice for thedisposal of rubbish because _______.

A. local governments find it easy to manage
B. recycling ahs great appeal for the jobless
C. recycling causes little pollution
D. other methods are more expensive

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改变属性定义的命令是在命令行输入_命令。编辑图块属性的命令为在命令行输入_命令。

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对已做成属性块的属性可以对它的属性名等属性进行编辑。（）

A. 对
B. 错

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Most dogs love performing tricks for you topleasantly accept that you are in charge.Why do pet dogs love performing tricks fortheir masters?

A. To avoid being punished. B. To show their affection for their masters. C. To win leadership of the dog pack. D. To show their willingness to obey.

I wanted to open my eyes and expandmy vision by interacting with people who weren’tstudying science or engineering.According to the author, by interacting withpeople who study liberal arts, engineering studentscan _______.

In many areas, the East Coast especially, recyclingis already the least expensive waste-managementoption.Recycling has become the first choice for thedisposal of rubbish because _______.

改变属性定义的命令是在命令行输入_______命令。编辑图块属性的命令为在命令行输入_______命令。

对已做成属性块的属性可以对它的属性名等属性进行编辑。（）

A. To avoid being punished.
B. To show their affection for their masters.
C. To win leadership of the dog pack.
D. To show their willingness to obey.

改变属性定义的命令是在命令行输入_命令。编辑图块属性的命令为在命令行输入_命令。