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【简答题】
数据流图的类型有________和事务型。
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反馈参考答案：
举一反三
【单选题】Which of the two sentences sounds more natural?
A.
If you play football on the road, a car may hit you.
B.
If you play football on the road, you may be hit by a car.
【简答题】Let Jenny play with your toy car as
well, Peter You must learn to .A. help B. share C. like D. care
【单选题】— Mum, my friends are waiting for me outside. May I go out to play with them? — Yes, you , but be careful, please.
A.
shall
B.
must
C.
may
D.
should
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