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【单选题】
Which statement about comments is false?A.
Comments begin and end with /* and */ , respectively.
B.
Programmers insert comments to document programs and improve program readability.
C.
Comments do not cause any machine language object code to be generated.
D.
Lengthy comments can cause poor execution-time performance.
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反馈参考答案：
举一反三
【简答题】stationary phase
【多选题】Let be independent normal variables each with mean 0 and variance and let a,b and c be constants. Which, if any, of the following processes are stationary?
A.
B.
C.
D.
E.
【简答题】Let {Xt} be a stationary time series and define (a) Show that is free of t for all lags k. (b) Is {Yt} stationary?
【单选题】He has made ________ that we are proud of him. [ ]
A.
so rapid progress
B.
such a rapid progress
C.
such rapid progress
D.
such rapid progresses
【单选题】- Some children can't afford ________ necessary stationary. - Let's donate our pocket money to them.
A.
buy
B.
buying
C.
to buy
D.
be bought
【单选题】There is ________ in population that a food shortage is caused.
A.
so rapid an increase
B.
such rapid an increase
C.
such rapid increase
D.
so a rapid increase
【简答题】A．successful B．compulsory C．miserable D．stationary
【简答题】A．successful B．compulsory C．miserable D．stationary
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