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【判断题】
极坐标法的原理是坐标正算。A.
正确
B.
错误
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反馈参考答案：
举一反三
【单选题】数据物理独立性是指( )。
A.
概念模式改变，外模式和应用程序不变
B.
概念模式改变，内模式不变
C.
内模式改变，概念模式不变
D.
内模式改变，外模式和应用程序不变
【简答题】可支配收入对应最终消费支出,调整后可支配收入对应的消费概念则是实际最终消费。从特定部门(主要是政府部门和住户部门)看,两个可支配收入概念和两个最终消费概念之间并不相等,其差别在于()。
【单选题】The writer of a detective story makes use of ________ to involve the readers to find out what’s concealed beneath.
A.
plot
B.
a detective
C.
dialogue
D.
police
【单选题】数据库系统的数据物理独立性是指( )。
A.
概念模式改变，外模式和应用程序不变
B.
概念模式改变，内模式不变
C.
内模式改变，概念模式不变
D.
内模式改变，外模式和应用程序不变
【判断题】The writer deliberately makes Polly Espy use a lot of exclamatory words like: “Gee, Oo, wow-dow” and clipped vulgar forms like: “delish, marvy, sensaysh, terrif, magnif etc.” to create the impression ...
A.
正确
B.
错误
【单选题】According to the writer, the use of the calculator in class ____________.
A.
is something we can all agree on
B.
leads to difficulty with understanding algebra
C.
helps develop the skills needed for understanding math
D.
makes students spend far too much time
【多选题】What makes it possible for the writer to produce such vivid and immediate description?
A.
Contact with and awareness of different types of people
B.
His thorough and profound understanding of 'human nature”
C.
His keen power of observation and active imagination
D.
His effective use of language
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