It is very kind of you to _________ your seat to an old woman on a bus. A.offerB.offersC.offeredD.offering
It is very kind of you to _________ your seat to an old woman on a bus.
A.offer
B.offers
C.offered
D.offering
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Our school has a big library.It has many books on different subjects. Students can read books and newspapers in the __21__ room. They can also borrow books from the library. But they the desk when Amy hurried in. She told Miss Susan that she couldn't find the library book " Harry Potter "__24__. At that moment, Lucy came into the library with Amy's book. She found it in the classroom. Amy was very __25__. She thanked Lucy and said that she would be more careful from then on.21.A.readingB.returnC.happyD.anywhereE.kind22.A.readingB.returnC.happyD.anywhereE.kind23.A.readingB.returnC.happyD.anywhereE.kind24.A.readingB.returnC.happyD.anywhereE.kind25.A.readingB.returnC.happyD.anywhereE.kind
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1、哲学家就餐问题的解决方案如下： semephore *chopstick[5]; semaphore *seat; 哲学家 i: …… P（seat); P（chopStick[i]); P（chopStick[（i + 1) % 5]); 吃饭 V（chopStick[i]); V（chopStick[（i + 1) % 5]); V（seat); 其中，信号量seat的初值为（）。A．0B．1C．4D．5
哲学家就餐问题的解决方案如下： semephore *chopstick[5]; semaphore *seat; 哲学家 i: …… P（seat); P（chopStick[i]); P（chopStick[（i + 1) % 5]); 吃饭 V（chopStick[i]); V（chopStick[（i + 1) % 5]); V（seat); 其中，信号量seat的初值为（）。A．0B．1C．4D．5