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The American farmers have always been independent and hard-working.In the eighteenth century farmers were quite self-sufficient. The farmfamily grew and made almost nothing it needed. The surplus crop 1．______would be sold in order to buy a few items in the local general stone.In 1860, because some of the farm population had moved to 2．______the city, yet eight percent of the American population was still inthe country. In the late nineteen century, farm work and life were 3．______not much changed from that they had been in old days. The farmer 4．______aroused at dawn or before and had much work to do, with his own 5．______muscles like his chief source of power. He used axes, spades and 6．______other complicated tools. In his house cooking was done in wood 7．______burning stoves, and the kerosene lamp was the only improvementon the candle. The family’s recreation and social life chieflyconsisted a drive in the wagon to the nearby small town or village 8．______to transact some business as well as to chat with neighbors who alsocome to town The children attended a small elementary school (often of justone room) to that they had to walk every day, possibly for a few miles. 9．______The school term was short so that the children could not help on the 10．______farm. Although the whole family worked, and life was not easy,farmers as a class were self-reliant and independent.
Your production database is running in archivelog mode and you are using recovery manager （RMAN） with recovery catalog to perform the database backup at regular intervals. When you attempt to restart the database instance after a regular maintenance task on Sunday， the database fails to open displaying the message that the data file belonging to the users tablespace are corrupted. The steps to recover the damaged data files are follows： 1. Mount the database 2. Open the database 3. Recover the data file 4. Restore the data file 5. Make the data file offline 6. Make the data file online Which option identifies the correct sequence that you must use to recover the data files？（）
高血压脑病时最常见的症状是（）
胸片上，正常肺门位于（）
凡保险人应权利人的要求担拐杖义务人信用的保险属于（）。
P县一中组织全校学生走进中小学生劳动技术教育基地，开展为期7天的社会实践活动。在这个环节中，教师主要扮演的是（）。
按客户购买意向的强弱、经济承受能力、购买的区域范围等因素，可将客户分为A、B、C三个客户群，其中B类客户的特征表现为（）。
URL是FTP的地址编码，采用URL可以用一种统一的格式来描述各种信息资源。
北斗卫星导航试验系统于2000年建成，使我国成为（）拥有自主卫星导航系统的国家
研究者和申办者应向伦理委员会提供的资料不包括（）。
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轴端螺栓孔螺纹有损伤或滑扣时，累计不得超过3扣，且不得连续，毛刺须清除。
检修螺纹有损伤或滑扣时，累计不得超过（），且不得连续。
检修螺纹有损伤或滑扣时，累计不得超过（），且不得连续。
检修螺纹有损伤或滑扣时，累计不得超过（），且不得连续。
有损伤或滑扣时，累计不得超过（），且不得连续，毛刺须清除。
有损伤或滑扣时，累计不得超过（），且不得连续，毛刺须清除。
轴端螺栓孔螺纹有损伤或滑扣时，累计不得超过3扣，且不得连续，毛刺须清除。
检修螺纹有损伤或滑扣时，累计不得超过（），且不得连续。
交叉杆端头螺纹损伤或滑扣时，累计不得超过（），毛刺须清除。
交叉杆端头螺纹损伤或滑扣时，累计不得超过（），毛刺须清除。