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【单选题】
一个两位小数,它的近似数是5.6,这个小数最小是( ),最大是( )。A.
5.55 ；5.70
B.
5.50 ；5.69
C.
5.55 ；5.64
D.
5.54 ；5.65
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【单选题】已知实信号f(t)的傅里叶变换为F(jω)=R(ω)+jX(ω)，则信号y(t)=0.5[f(t)+f(-t)]的傅里叶变换Y(jω)等于（）。
A.
R ( ω )
B.
2R ( ω )
C.
R ( 2 ω )
D.
R (0.5 ω )
【单选题】A: Fantasia. This is Coast Station. Advise you alter 90 degrees to starboard to avoid fishing boats. Over.B: Coast Station. This is Fantasia. OK. I’ll do that. Over.Q: What will Fantasia do?
A.
Fantasia will alter 09 degrees to port.
B.
Fantasia will alter 09 degrees to starboard.
C.
Fantasia will alter 90 degrees to port.
D.
Fantasia will alter 90 degrees to starboard.
【简答题】在供应链系统的合作伙伴企业选择和关系建立过程中,应根据需求不同采取不同策略。如企业的增值能力高且竞争能力强,从长期或中期需求应选择()的为合作伙伴。A关键企业 B一般企业 C竞争企业 D战略核心伙伴企业
【单选题】已知实信号f(t)的傅里叶变换F(j)=R(w)+jX(w),则信号 的傅里叶变换Y(jw)等于( )。
A.
R(w)
B.
2R(w)
C.
2R(2 w)
D.
R(0.5 w)
【简答题】The Center for a New American Dream pointed out that brand loyalties could be formed as early as age two.
【单选题】Task 2 Directions : The following is a poster. After reading it, you will find 3 questions or unfinished statements, numbered 45 to 47. For each question or statement, there are 4 choices marked A, B,...
A.
the application for Club membership
B.
the postponement of President's Cup
C.
the final result of President's Cup
D.
the activities of Club President
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