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【单选题】
Protel DXP原理图编辑界面中，建立设计项目库的菜单是（ ）。A.
文件
B.
报告
C.
设计
D.
项目管理
拍照语音搜题，微信中搜索"皮皮学"使用
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参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】There is a direct flight at 20:00 in the afternoon or a flight at 9:30 in the morning that______ in Chicago.
A.
stops by
B.
stops over
C.
pulls up
D.
drops in
【单选题】The key word in Paragraph 4 is ______.
A.
disability
B.
ignorance
C.
prejudice
D.
barriers
【单选题】There is a direct flight at 3:00 or a flight at 7:30 in the morning that ______ in Los Angeles.
A.
stops by
B.
stops in
C.
stops over
D.
stops up
【单选题】The key word in Paragraph 4 is ______.
A.
barriers
B.
ignorance
C.
disability
D.
prejudice
【简答题】按照车门开启及结构形式主要分为( )和( )。
【单选题】This type of key is used to link rows from one table to the rows in another table.
A.
Primary key
B.
Foreign key
C.
Encryption key
D.
Public key
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