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【判断题】
对于一个非正弦的周期量，可利用叶级数展开为各种不同频率的正弦分量与直流分量，其中角频率等于ωt的称为基波分量，角频率等于或大于2ωt的称为谐波。A.
正确
B.
错误
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知识点：
皮皮学刷刷变学霸
举一反三
【单选题】He rambled on for half an hour, but the of what he had said was that too many people had too little money.
A.
material
B.
purpose
C.
essence
D.
content
【单选题】What he said was too ________for me to understand.
A.
complex
B.
compound
C.
comprehensive
D.
conventional
【单选题】His speech rambled for half an hour, but the of what he said was that too many people has too little money.
A.
material
B.
purpose
C.
essence
D.
content
【单选题】What he said was _____ difficult for us _____ understand. [ ]
A.
so; that
B.
very; to
C.
too; to
D.
very; that
【单选题】如果加速数小于1，则( )
A.
预期收入小幅度变化导致投资较大幅度变化
B.
预期收入较大幅度变化导致投资较小幅度的变化
C.
预期收入的变化会导致投资同等幅度的变化
D.
预期收入的变化不会导致投资的变化
【单选题】What he said was too ____ for me to understand. A. B. C. D.
A.
complete
B.
complex
C.
compound
D.
comparable
【单选题】 What he said was really too good for us to ________.
A.
be believed
B.
believing it
C.
believe
D.
believe it
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