• 2022-06-06
    “I live on 9200 S. Bell St.” What does "S." stand for in this sentence? (      )
  • South

    内容

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      M: Where have you put the video, Cindy I have to return it to John tomorrow.W: I’ m sorry, I’ ve lent it to my sister. I’ ll get it back for you now. Whose video is it()。 A: Cindy’ s. B: Cindy’ s sister’ s. C: John’ s. D: The man’ s.

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      E-commerce, which has long been ()stronghold. A: Facebook’s. B: Google’s . C: Apple’s. D: Amazon’s.

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      There is ______ ID in the bag. It’s ______ Jill’s.

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      Henry’s baggage is ______ as Rachel’s.

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      已知向量组α1,α2,…,αs,线性相关,其中αi=[ai1,ai2…,ain]T,i=1,2,…,s.则下列向量组可能线性无关的是( ). A: βi=[ai2,ai1,ai3,…,ain]T,i=1,2,…,s. B: γi=[ai1,ai1-ai2,ai3,…,ain]T,i=1,2,…,s. C: ξi=[ai1,ai2,…,ain-1]T,i=1,2,…s D: ηi=[ai1,ai2,…,ain,ain+1]T,i=1,2,…,s.