Can animals be made to work for us
Some scientists think that one day animals may be trained to do a number of
simple jobs that are now done by human beings. They point out that at a circus, for example, we may see elephants, monkeys, dogs and other animals doing quite skillful things. Perhaps you have seen them on the television or in a film. If you watch closely, you may notice that the trainer always gives the animal a piece of candy or a piece of fruit as a reward. The scientists say that many different animals may be trained to do a number of simple jobs if they know they will get a reward for doing them. Of course, as we know, dogs can be used to guard a house, and soldiers in both old and modem times have used geese to give warning by making a lot of noise when a stranger or an enemy comes near. But it may be possible A. who their trainers are B. they will be praised by their trainers C. they will get a reward D. something dangerous will happen to them [单选题]螺纹的()是指在通过螺纹轴线剖面上的螺纹的轮廓形状。
A.牙型 B.线数 C.螺距 D.导程 [单项选择](2013)在填方工程中,如采用透水性不同的土料分层填筑时,下层宜填筑:()
A. 渗透系数极小的填料 B. 渗透系数较小的填料 C. 渗透系数中等的填料 D. 渗透系数较大的填料 [填空题]席位全程复用是指:对列车运行区间中的剩余区段进行()。
[单项选择]
B One Sunday, Mark decided to go sailing in his boat with his friend Dan, but Dan happened to be away. Dan’s brother John offered to go instead though he did not know anything about sailing. Mark agreed and they set out to sea. Soon they found themselves in a thick fog. Mark was sure they would be hit by a big ship. Fortunately he saw a large buoy (浮标) through the fog and decided to tie the boat to it for safety. As he was getting onto the buoy, however, he dropped the wet rope. The boat moved away in the fog carrying John, who did not know how to use the radio, He drifted (漂流) about and was not seen until twelve hours later. Mark spent the night on the buoy. In the early morning he fell asleep. He was having a bad dream when a shout woke him up. A ship, the Good Hope, came up and he climbed onto it and thanked the captain. The captain told him that John had been picked up by another ship and the ship’s captain had sent out a message. "Wit A. the captain that got the message B. the captain that sent the message C. John D. Mark [判断题]( )两个及以上专业综合利用天窗时,由施工办指定主体维修单位。
A.正确 B.错误 [多选题]下列做法正确的是( )。
A.张三在15岁时盗窃200元,公安机关作出拘留5日处罚并送达拘留所执行 B.张三在15岁时殴打他人后被罚200元,张三在17岁时又盗窃300元,公安机关作出拘留5日处罚并送达拘留所执行 C.张三在15岁时殴打他人后调解结案,张三在17岁时又盗窃300元,公安机关作出拘留5日处罚并送达拘留所执行 D.68周岁的张三殴打李四后逃跑,三年后公安机关抓获了张三,作出了拘留5日处罚并送达拘留所执行 [多选题]施工人员进入站台端门时,端门管理人员需核实以下几项:( )。
A.施工行车通告 B.与行车值班员核实《端门卡控表》内容并打勾确认 C.与行车值班员核实《端门放行卡》内容并打勾确认 D.施工负责人证件(员工卡.施工作业证等) [判断题]同一停电检修申请票的几张工作票未全部办理终结手续前,工作许可人不得向调度员汇报工作终结。
A.正确 B.错误 [单选题]非物质文化遗产的形式、内容、表现手法乃至传统技艺,都必须尽量是原汁原味,随便地“________”就失去了本来的文化意义了。就好像京剧,加入西洋器乐或其他剧种的表演技法、剧目等,只能算是移植、开发新艺术形式,而不是保护和传承了。再如国画加油彩,茶道添歌舞,梆子、越剧或黄梅戏塞进街舞等等,岂非________。
填入画横线部分最恰当的一项是:
A.添枝加叶不伦不类 B.洋为中用买椟还珠 C.照猫画虎得不偿失 D.改头换面邯郸学步 [单选题]进入过滤器检修未穿戴防护用具,易产生( )风险。
A.坠落 B.触电 C.滑跌 D.中毒、窒息 [判断题] 各种类型的绝缘导线,其容许工作温度为65℃。()
A.正确 B.错误 [单项选择]26岁初产妇,末次月经2002年3月10日,于2002年10月13日就诊,检查子宫底在脐上3横指,枕右前位,胎心正常,血压24/14kPa,尿蛋白(+++),本病例现在是
A. 妊娠满32周,子宫底高度低于正常 B. 妊娠满31周,子宫底高度低于正常 C. 妊娠满31周,子宫底高度符合正常情况 D. 妊娠满30周,子宫底高度低于正常 E. 妊娠满30周,子宫底高度符合正常情况 [单选题]打辊静平衡只能平衡打辊( )的不平衡,无法消除垂直轴线上的不平衡力矩。
A.重量 B.重心 C.中心 D.轴心 [简答题]什么是计算机硬件、软件?
[单项选择]
A. 个人年金 B. 分期缴费年金保险 C. 联合年金 D. 联合及生存者年金 [单项选择]
对于代沟现象的认识,不正确的是() A. ③⑤ B. ④⑤ C. ③④⑤ D. ②③④⑤ E. ①②③④⑤ [判断题]多家授信机构对消费者房贷、车贷、信用卡的集中查询会严重影响消费者的信用评分。
A.正确 B.错误 [单选题]正常飞行中,电瓶汇流条由什么供电?
A.电瓶 B.电瓶充电器 C.TR3 D.TR1 [单选题]在区间线路上进行不影响行车的作业,不需要以停车信号或移动减速信号防护,应在作业地点两端处列车运行方向左侧(双线在线路外侧)( )的路肩上设置作业标。
A.500~1000m B.600~1000m C.700~1000m D.800~1000m [单项选择]以下哪项()不属于合理的蹲姿?
A. 撅臀式 B. 高低式 C. 半蹲式 D. 半跪式 [判断题] 题目:产品和服务信息披露应至少明确性质、收费情况、合同主要条款,特别是免除银行保险机构责任的条款等内容,真实、准确、合理揭示风险。()
A.正确 B.错误 [多选题]《商业银行大额风险暴露管理办法》规定,商业银行应加强信息系统建设,持续收集数据信息,有效支持大额风险暴露管理。相关信息系统应至少实现以下功能( )。
A.支持关联客户识别 B.准确计量风险暴露 C.持续监测大额风险暴露变动情况 D.大额风险暴露接近内部限额时,进行预警提示 [多选题][多选]基坑工程施工应具备( )条件。
A.基础结构设计文件交底完成 B.基坑支护工程施工专项施工方案已按规定办理审批手续 C.超过一定规模的危险性较大的基坑支护工程有专项施工方案 D.已对周围地上及地下环境采取了保护或其他措施 E.基坑监测方案已编制并审批完成,监测仪器已布置到位 [判断题]柴油机油、水温度低是造成柴油机敲缸的原因之一。
A.正确 B.错误 [简答题]电控悬架的功用主要包括哪些?
[简答题]请根据《营销业扩报装工作全过程安全危险点辨识与预控手册(试行)》内容,描述客户设备投运工作时的危险点有哪些?
[填空题]Auma电动执行机构本体切换开关在控制器上有三种位置:“0”为()、“Ⅱ”为现场位置、“Ⅲ”为中控位置。
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