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幼儿英语教育的认知目标应该是让幼儿在学习语言知识的过程中奠定英语语音语调的基础。( )
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Today this bell rang ________ for 10 minutes and annoyed the boss.
A、consistently
B、continually
C、continuously
D、insistently
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For thetransfer function of all-pass systems, which of the following statements are correct?
A、All-pass systems can be used to assist the implementation of a stable system.
B、All-pass systems can be used to assist the implementation of a linear-phase system.
C、All-pass systems can be used to assist the implementation of a minimum phase delay system in a certain magnitude characteristic.
D、All-pass systems can be used to assist the implementation of a bounded system.
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