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构造下列正规式相应的DFA 1(0|1)*101 0*10*10*10*
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【单选题】I ______ to help you to do homework but I couldn’t spare any time. I ______ a composition last night and I’ll finish it tomorrow.
A.
wanted; wrote
B.
had wanted; was writing
C.
have wanted; wrote
D.
wanted; have been writing
【简答题】I needed someone to help me. But I couldn’t find anyone. I had to do it all on my own.
【简答题】Then all that changed. I hardly remember everything of that day six years ago, but I do remember that I was feeling very angry. Then I found myself in my brother’s room. I couldn’t help reaching my ha...
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