皮皮学，免费搜题
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【单选题】
粮谷类的第一限制氨基酸是
A.
谷氨酸
B.
组氨酸
C.
蛋氨酸
D.
赖氨酸
E.
色氨酸
拍照语音搜题，微信中搜索"皮皮学"使用
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A.
击球前
B.
击球后
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【单选题】Some countries urgently need competent people to ______ a concept of development based on modernization.
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manipulate
B.
implement
C.
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D.
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【单选题】把选定信息由源文件嵌入到目的文件的操作步骤是：确定要嵌入的内容，把选中的信息复制到剪贴板上，然后把剪贴板上的信息（ ）到目的文件中的指定位置。
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剪切
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粘贴
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【简答题】听力原文： Why Some People Are Poor The poverty line is the minimum income that people need for an acceptable standard of living. / People with incomes below the poverty line are considered poor. / As the ...
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【单选题】关于备份文件,说法错误的是:
A.
每次保存AutoCAD文件都会自动更新已有的bak文件。
B.
bak文件可以使用AutoCAD直接打开。
C.
原图形文件丢失或打不开时，将.bak文件重命名为以.dwg为扩展名的文件，即可恢复文件。
D.
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【多选题】把选择的信息复制到剪贴板的按键是 ，把剪贴板上的信息粘贴到光标处的按键是 。
A.
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B.
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【简答题】把选择的信息复制到剪贴板的按键是Ctrl+ [A] 。(字母大写)
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【单选题】Some social workers _____ after the people in need while others ____ out food to the local people.
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looked, gave
B.
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C.
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D.
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【单选题】Why do some people need to learn a skill in school?
A.
They need to make money to support themselves and their family.
B.
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C.
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相关题目：
【单选题】运动员在发球或还击后,对方运动员在( ),球触及了除球网装置以外的任何东西判得一分。
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AutoCAD保存后自动生成一个与原图形文件名称相同、扩展名为bak的备份文件。
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查看完整题目与答案
【多选题】把选择的信息复制到剪贴板的按键是 ，把剪贴板上的信息粘贴到光标处的按键是 。
A.
Ctrl+C
B.
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查看完整题目与答案
【简答题】把选择的信息复制到剪贴板的按键是Ctrl+ [A] 。(字母大写)
查看完整题目与答案
【单选题】Some social workers _____ after the people in need while others ____ out food to the local people.
A.
looked, gave
B.
were looking, gave
C.
were looking, were giving
D.
looked, were giving
查看完整题目与答案
【单选题】Why do some people need to learn a skill in school?
A.
They need to make money to support themselves and their family.
B.
They need to learn a skill in order to become great scientists.
C.
They need to understand how important education is.
查看完整题目与答案