[判断题]系统性误差和登记误差是可加以避免的,而偶然性误差是不可避免的.
[单选题]工业机器人运动自由度数,一般( )A.小于2个 B.小于3个 C.小于6个 D.大于6个
[单选题]It is no longer a problem _______ the poor children in this district can go to school
[单选题]要对化工过程进行节能改进,就必须对理想功、损失功、热力学效率进行计算和热力学分析. A.正确B.错误C.不一定D.皆有可能
[问答题]对用户程序的解释和执行,由PLC的( )单元完成.
[多选题]影响变压器铁损耗大小的因素包括( ) (A) 励磁电流的大小 (B) 负载的大小 (C) 磁通密度 (D) 频率
[阅读理解]Passage2A foreigner.s first impression of the U.S. is likely to be that everyone is in a rush - often under pressure. City people appear always to be hurrying to get where they are going restlessly, seeking attention in a store, and elbowing others as they try to complete their errands (任务). Racing through daytime meals is part of the pace of life in this country. Working time is considered precious. Others in public eating places are waiting for you to finish so that they too can be served and get back to work within the time allowed. Each person hurries to make room for the next person. If you don.t, waiters will hurry you. You also find drivers will be abrupt and that people will push past you. You will miss smiles, brief conversations, and small courtesies with strangers. Don.t take it personally. This is because people value time highly, and they resent someone else wastingit beyond a certain courtesy point. The view of time affects the importance we attach to patience. In the American system of values, patience is not a high priority. Many of us have what might be called a short fuse. We begin to move restlessly about if we feel time is slipping away without some return - be this in terms of pleasure, work value, or rest. Those coming from lands where time is looked upon differently may find this matter of pace to be one of their most difficult adjustments in both business and daily life. Many newcomers to the States will miss the opening courtesy of a business call, for example, they will miss the ritual socializing that goes with a welcoming cup of tea or coffee that may be traditional in their own country. They may miss leisurely business chats in a café or coffeehouse. Normally, Americans do not assess their visitors in such relaxed surroundings over prolonged small talks. We seek out evidence of past performance rather than evaluate a business colleague through social courtesies. Since we generally assess and probe professionally rather than socially, we start talking business very quickly. 1.Which of the following statements is wrong? ___________ A:Americans seem to be always under pressure.B:Americans attach less importance to patience.C:Americans don.t care much about ritual socializing. D: Americans are impolite to their business colleagues.2.In the fourth paragraph, a high prioritymeans ___________. A:a less important thing B:a first concern C:a good business D:an attractive gift3.Americans evaluate a business colleague ________. A:through social courtesy B:through prolonged business talks C:by establishing business relations D:by learning about their past performance4.This passage mainly talks about __________. A:how Americans treasure their time B: how busy Americans are every day C:how Americans do business with foreigners D: what American way of life is like5.We can infer from the passage that the author.s tone in writing is ________. A:critical B:ironical C:praiseful D:objective
[判断题]××市税务局通告.
[名词解释]非理想溶液
[单选题]关于ARP表,以下描述中正确的是 ( ) .A、提供常用目标地址的快捷方式来减少网络流量B、用于建立IP地址到MAC地址的映射C、用于在各个子网之间进行路由选择D、用于进行应用层信息的转换
[多选题]单代号网络图的绘图规则有( ). A.正确表达己定的逻辑关系 B.不允许出现双箭头或无箭头的连线 C.不允许出现多个起点节点 D.不允许间断编号 E.不允许出现循环回路
[单选题]行政法的调整对象是( )A.行政关系B.行政国C.公行政D.行政权
[单选题]SQL是( )的缩写.A. StandardQueryLanguageB. SelectQueryLanguageC. StructuredQueryLanguageD. 以上都不是
[填空题]拆入行的应计利息应计入( )账户.
[多选题]下面那些楼梯可作为疏散楼梯______ A.直跑楼梯 B.剪刀楼梯 C.螺旋楼梯 D.多跑楼梯
[单选题]某段距离丈量的平均值为100m,其往返较差为+4mm,其相对误差为( ). A..1/25000 B.2017/1/25 0:00:00 C.1/2500 D.1/250
[单选题]烟囱上部大气是不稳定的大气、而下部是稳定的大气时,烟羽的形状呈( ).A. 平展型. B. 波浪型(翻卷型).C. 漫烟型(熏蒸型). D. 爬升型(屋脊型).
[判断题]资本经营盈利能力分析主要对全部资产报酬率指标进行分析和评价. ( )
[单选题]PowerPoint 2003中,模板文件的扩展名为 _____ A、 PPT B、 POT C、 DOT D、 DOC
[多选题]晚清四大谴责小说是指A.《官场现形记》 B.《二十年目睹之怪现状》C.《老残游记》 D.《孽海花》
[单选题]交流接触器线圈电压过低将导致( )A.线圈电流显著增大; B.线圈电流显著减小; C.铁心涡流显著增大; D.铁心涡流显著减小.