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【简答题】
电子电路中的信号可以分为两类,一类是在时间和幅度上都是连续的信号,称为 ;另一类在时间和幅度上都是离散的信号,称为 。
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举一反三
【单选题】Chinese musical system is thought to be __
A.
horizontal
B.
vertical
C.
parallel
D.
melody
【单选题】Which of the following is a Chinese musical instrument?
A.
A piano
B.
A flute
C.
A pipa
D.
A violin
【单选题】Chinese musical scale is a ____scale
A.
heptatonic
B.
monophonic
C.
pentatonic
D.
harmony
【简答题】Directions: Translate the underlined sentences in the following passage into Chinese. Instead &trying to reduce the discontent felt, try to raise the level or quality of the discontent. Perhaps the mo...
【单选题】. Many composers, directors and procucers are ______ that the erhu, a Chinese musical instrument, can make their films more colorful.
A.
aware
B.
anxious
C.
cautious
D.
modest
【单选题】Which of the following is not the Chinese musical instrument?
A.
trumpet
B.
Pipa
C.
Guqin
D.
Xun
【单选题】下列各项中不属于政府采购中采购人的权利的是
A.
限制外地供应商入本地区政府采购市场的权力
B.
自行选择采购代理机构的权力
C.
审查政府采购供应商资格的权力
D.
依法确定供应商的权利
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