在CAD作业过程中，表面模型支持的作业内容是（）

[问答题]Practice 2　 Directions:　 Read the following text(s) and write an essay to　 1) summarize the main points of the text(s),　 2) make clear your own viewpoint, and　 3) justify your stand.　 In your essay, make full use of the information provided in the text(s). If you use more than three consecutive words from the text(s), use quotation marks (“ ”).　 You should write 160—200 words on the ANSWER SHEET.　 It is all very well to blame traffic congestion, the cost of petrol and the hectic pace of modern lift, but manners on the roads are becoming deplorable. Everybody knows that nicest men become monsters behind the wheel. It is all very well again to have a tiger in the tank, but to have one in the drivers seat is completely another awkward and difficult situation.　 You might tolerate the odd mad hog, but nowadays the well-mannered motorist is the exception to the rule. Perhaps the situation calls for a “Be Kind to Other Drivers” campaign; otherwise it may get completely out of hand.　 Road courtesy is not only good manners, but good sense too. It takes the most levelheaded and good-tempered of drivers to resist the temptation to retaliate when subjected to uncivilized behavior. On the other hand, a little courtesy goes a long way towards relieving the tensions and frustrations of motoring. A friendly nod or a wave of acknowledgement in response to an act of courtesy helps to create an atmosphere of goodwill and tolerance so necessary in modern traffic conditions. But such acknowledgements of courtesy are all too rare today. Many drivers nowadays don't even seem able to recognize courtesy when they see it.　 Lorry drivers say they have almost abandoned the practice of signaling cars to overtake when the road is clear, because many of the cars took too long to pass. Their drivers couldn't be bothered to select a lower gear. Others, after overtaking, slowed down again and hogged the road.　 They manufacture them by force, using their direction indicators as a threat rather than a warning. Slanting matches and even punch-ups（打架斗殴）are quite common. It can't be long before we hear of pistols and knives being used: we can then call our dual carriageways, and solve a spelling problem in the process. Driving is essentially a state of mind. However technically skilled a driver may be, he can't be all advanced motorist if he is always arrogant and aggressive.

[单选题]《公务员法》开始实施的时间（）。

[多选题]国内邮政汇款查询可分类为（）。

[问答题]为何城市的地震次生灾害十分突出？

[单选题]中西方社会文化之间存在着较大差异。在我国社会工作快速发展进程中，推动我国社会工作价值观与伦理规范本土化的正确态度应该是（　　）。

[单选题]涡流式压力传感器一般首先要把压力信号转换成（）信号。

[多选题]根据消费税法律制度的规定，下列应税消费品中，采用复合计税方法计征消费税的有（）。

[单选题]正畸治疗过程中，以下哪种吸收与矫治力无关（）

[单选题]精子的头部含有什么（）。

[单选题]扩张性货币政策主要指（　　）。

[单选题]在CAD作业过程中，表面模型支持的作业内容是（）

[单选题]在CAD作业过程中，表面模型可以支持的工作是（）

[填空题]在CAD/CAM系统集成化发展过程中，（）技术是更高层次的集成系统，在CAD/CAM系统智能化发展过程中，（）是将人工智能技术首先引入产品设计领域的。

[单选题]在CAD作业过程中，表面模型不支持的作业内容是（）

[判断题]作业区关联关系分析是对配送中心作业过程中各作业区之间的物品移动强度和数量进行分析。

[判断题]作业区关联关系分析是对配送中心作业过程中各作业区之间的物品移动强度和数量进行分析。

[填空题]作业门以（）为定位。作业过程中，作业门应保持锁闭状态，否则必须安排专人看守。

[填空题]作业门以（）为定位。作业过程中，作业门应保持锁闭状态，否则必须安排专人看守。

[问答题]接触网作业车在作业过程中，当作业平台超出车辆限界或液压系统出现故障而无法回位时，应如何操作？

[问答题]接触网作业车在作业过程中，当作业平台超出车辆限界或液压系统出现故障而无法回位时，应如何操作？