61) Man’s preoccupation with time derives ultimately from his unique relationship to it. All animals are changed by it. But only human can manipulate it.
Like Proust, the French author whose experiences became his literary capital, man can remember the past. He can also summon up things to come, displaying imagination and foresight along with his memory. 62) It can be argued that memory and foresightedness are the essence of intelligence; that man’s ability to manipulate time, to employ both past and future as guides to present actions, is what makes him human.
To be sure, many animals can react to time after a fashion. A rat can learn to press a lever that will, after delay of some 25 seconds, reward it with a bit of food. 63) But if the delay stretches beyond 30 seconds, the animal is at a loss. It can no longer associate reward so far in the future with present action.
Monkeys, more intelligent than rats, are better a
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{{/U}}a measure of control in A. completed B. finished C. accomplished D. fulfilled [简答题]某施工单位施工防波堤工程，堤长800m，堤头为沉箱直立式结构，堤身为抛石斜坡堤，扭王字块护面，施工组织设计编制完成后，因业主和监理催促，项目经理审查后直接报给了监理和业主。施工中检查发现，扭王字块摆放中竖杆全部整齐排列朝上，经询问，施工单位说，如此排列观瞻整齐、美观。胸墙混凝土掺入粉煤灰，取代15%的水泥，超量取代，超量取代系数k=1.3，混凝土的水胶比为0.6，拌合水用量180kg/m3。混凝土入模温度38℃，测温系统显示混凝土内部最高温度82℃，表面温度52℃，混凝土养护7d，发现有裂缝数条。单位工程划分合适否？理由是什么？
[单选题]在进口环节计算的应纳增值税可以选择抵扣境外税款。
A.正确 B.错误 我来回答: 提交
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