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    How many children survived the crash? A. 18 B. 2 C. 20 【查看更多】

     

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    A class collects ＄50 to buy flowers for a classmate who is in the hospital. Roses cost ＄3 each， and carnations cost ＄2 each. No other flowers are to be used. How many different bouquets could be purchased for exactly ＄50？_______

     

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    下列语句：

    ①M＝input(“How many heads”)；

    ②N＝input(“How many legs”)；

    ③A＝(4*M－N)/2；

    ④B＝M－A；

    ⑤A；

    ⑥print(％io(2)，B)．

    其中是输出语句的是

    [　　]

    A．①②

    B．③④

    C．⑤⑥

    D．⑤

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