（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!

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？_______

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!

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!