摘要：Where are the speakers? A.In a restaurant. B.In a hotel. C.In a school.
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4、指出下列语句的错误，并改正：
（1）A=B=50
（2）x=1，y=2，z=3
（3）INPUT“How old are you”x
（4）INPUT，x
（5）PRINT A+B=；C
（6）PRINT Good-bye!
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（1）A=B=50
（2）x=1，y=2，z=3
（3）INPUT“How old are you”x
（4）INPUT，x
（5）PRINT A+B=；C
（6）PRINT Good-bye!
指出下列语句的错误，并改正：
（1）A=B=50
（2）x=1，y=2，z=3
（3）INPUT “How old are you” x
（4）INPUT，x
（5）PRINT A+B=；C
（6）PRINT Good-bye!
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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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