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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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下列語(yǔ)句:

①M(fèi)=input(“How many heads”);

②N=input(“How many legs”);

③A=(4*M-N)/2;

④B=M-A;

⑤A;

⑥print(%io(2),B).

其中是輸出語(yǔ)句的是

[  ]

A.①②

B.③④

C.⑤⑥

D.

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