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【单选题】
听力原文: The city's museums are much more than cultural centers. They are major contributors to the city's economy. Not only do they provide jobs for people living in the city, but also the museums attract tourists who spend money in hotels, restaurants and stores. Each year mass-motoring tours visit our museums and spend millions of dollars in the city, but only a fraction of that money is ever seen by the museums. This, in addition to recent cuts in government aid, has hurt the museums. And museums are in trouble, though we can all help by-increasing our contributions and encourage others to support cultural institutions. We should help the museums and help ourselves too. This message is by Crocker Bank, which is interested in keeping New York financially healthy. What is the main thought expressed in this appeal?
A.
The museums are a financial success.
B.
People are leaving New York too rapidly.
C.
The public should support cultural institutions.
D.
Crocker Band wants new depositors.
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【判断题】整数 -32100可以赋值给int型和long int型变量.
A.
正确
B.
错误
【判断题】整数-32100可以赋值给int型和long int型变量。
A.
正确
B.
错误
【单选题】一个女孩子,唱歌的声音明亮、高亢、灵巧。她的声部类型最可能是 。
A.
女低音
B.
女高音
C.
女中音
D.
低女中音
【单选题】粉尘对通风管道的磨损性与气流速度的( )次方成正比,气流速度越大,磨损程度越严重。
A.
1~2
B.
2~3
C.
3~4
D.
4~5
【单选题】儿童发现眼睛干涩夜盲症可能主要缺乏( )
A.
维生素A
B.
维生素B
C.
维生素C
D.
维生素D
【单选题】已知地基中某点剪切破坏时的大主应力为δ1=400KPa,小主应力为δ3=76KPa,土的内摩擦角Φ=30°,粘聚力C=50KPa,问该破坏面和大主应力面的夹角为( )?剪切破坏面上的法向应力和剪切应力分别为( )?
A.
αf=60°,δ=,180KPa,τ=120KPa
B.
αf=30°,δ=,180KPa,τ=120KPa
C.
αf=60°,δ=157KPa,τ=140KPa
D.
αf=30°,δ=,157KPa,τ=140KPa
【多选题】影响矿尘磨损性的主要因素是()。
A.
尘粒硬度、形状
B.
尘粒粒径、密度
C.
粉尘浓度的大小
D.
尘粒的荷电性
E.
与气流速度的2—3次方成正比
【单选题】一个女孩子,唱歌的声音明亮、高亢、灵巧。她的声部类型最可能是 。
A.
底女中音
B.
女高音
C.
女低音
D.
女中音
【单选题】同一财产的抵押权、留置权并存时,债权人受偿的顺序为( )。
A.
留置权人---抵押权人
B.
抵押权人---留置权人
C.
留置权人、抵押权人同时受偿
【单选题】金融期权的( )取决于期权的协定价格与基础资产的市场价格之间的关系。
A.
市场价值
B.
内在价值
C.
时间价值
D.
票面价值
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