早晨在校門口遇到同學時,應該怎麼樣打招呼?A.Howareyou? B.Goodmorning! C.Goo...
練習題5.69K
問題詳情:
早晨在校門口遇到同學時,應該怎麼樣打招呼?
A. How are you? B. Good morning!
C. Good evening! evening!
【回答】
B
知識點:情景交際
題型:選擇題
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.已知各項均不為零的數列{an},定義向量.下列命題中真命題是( )A.若∀n∈N*總有cn⊥bn成立,則數...
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