58被7,8除都除不尽,余数都是2。[ ]
正确
单词拼写
根据句子及所给首字母,写出空缺处各单词的正确形式。(共5小题;每小题1 分, 满分5分)
1. Go back home now, Mary. Your parents are c______ about you.
2. The mother felt very u_____ because his son failed in the final exam.
3. After returning from America, the old man s________ in Beijing.
4. I r him as soon as he came in the room, though I hadn’t seen him for years.
5. She looks young, but a__________ she’s over 50.
系统有同类资源10个,进程P1、P2和P3需要该类资源的最大数量分别为8,6,7。它们使用资源的次序和数量如表2-11所示。
在以后的申请中,哪次的申请可以得到最先满足给出一个进程完成序列。
表2-11 进程P1、P2和P3使用资源次数和数量表