皮皮学，免费搜题
登录
搜题
【简答题】
有一个理发师 , 一把理发椅和 n 把供等候理发的顾客坐的椅子。如果没有顾客 , 则理发师便在理发椅子上睡觉 : 当一个顾客到来时 , 必须唤醒理发师 , 进行理发;如果理发师正在理发时 , 又有顾客来到 , 则如果有空椅子可坐 , 他就坐下来等 , 如果没有空椅子 , 他就离开。为理发师和顾客各编一段程序描述他们的行为 , 要求不能带有竞争条件。
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【简答题】Write a composition of at least 150 words based on the following picture. You should describe the picture, give your opinion on the topic, and use specific reasons and/or examples to support yourself....
【简答题】材料： The Company should establish a safety and environmental protection policy which describes how the objectives will be achieved．The Company should ensure that the policy is implemented and maintaine...
【单选题】当代资本主义国家在经济关系方面的一系列新变化表明
A.
其社会性质已经根本改变
B.
其基本矛盾已经彻底解决
C.
其社会状况并无变化
D.
其社会发生了阶段性的部分质变
【简答题】“资产=负债+所有者权益”这个平衡公式是资金运动的动态表现。（ ）
【单选题】I'd like you to describe to my friend your exciting adventures in Africa as you have described them to me．
A.
我想让你把我描述给你的非洲冒险经历讲给我朋友听。
B.
我想让你把我和的刺激冒险经历描述给我的朋友听。
C.
我想让你像我一样，把非洲的刺激冒险经历描述给我的朋友。
D.
我想让你像给我描述的那样，给我的朋友描述的刺激的冒险经历。
【单选题】Which of the following best describes the organization of the passage?
A.
A problem is described, and then reasons why various proposed solutions succeeded or failed are discussed.
B.
A problem is described, and then an advantage of resolving it is offered.
C.
A problem is described, and then reasons for its continuing existence are summarized.
D.
The historical origins of a problem are described, and then various measures that have successfully resolved it are discussed.
E.
The causes of a problem are described, and then its effects are discussed.
相关题目：