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【简答题】
何谓离心泵的比转数?它对泵有何意义?
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举一反三
【简答题】Will you show me the ____you bought yesterday?
【单选题】— Will you show me the photo of your family? — OK. I'll it here next week.
A.
take
B.
catch
C.
carry
D.
bring
【单选题】Will you show me the boy ______ sister is my classmate?
A.
his
B.
that
C.
whose
D.
who
【简答题】阅读下列材料,在空白处填入适当的内容(一个单词)或括号内单词的正确形式。 Red is a popular color in China. A pair of red shoes — 1 they are for sports, dances or just fashion — is a must-have for every Chinese woman’s shoe collection. Fo...
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