[判断题]可待因的成瘾性归因于代谢后产生吗啡
[问答题]The greatest recent changes have been in the lives of women. During the twentieth century there was an unusual shortening of the time of a woman.s life spent in caring for children. A woman who got married at the end of the 19th century would probably have been in her middle twenties, and would be likely to have seven or eight children, of whom four or five lived till they were five years old. By the time the youngest was fifteen, the mother would have been in her early fifties and would expect to live a further twenty years, during which custom, chance and health madeit unusual for her to get paid work. Today women get married at a younger age and have fewer children. Usually a woman.s youngest child will be fifteen when she is forty-five and is likely to take paid work until retirement at si脚.Even while she has the care of children,her work is lightened by household appliances (家用电器)and convenience foods.This important change in women.s way of life has only recently begun to have its full effect on women.s economic position. Even a few years ago most girls left school at the first opportunity and most of them took a full-time job. However, when they got married, they usually left work at once and never returned to it. Today the school-leaving age is sixteen, many girls stay at school after that age, and thoughwomen tend to get married young, more married women stay at work at least until shortly before their first child is born. Many more return afterwards to a full-time or part-time job. Such changes have led to a new relationship in marriage, with both husband and wife accepting a greater share of the duties and satisfaction of family life, and with both husband and wife sharing more equally in providing the money and running the home, according to the abilities and interest of each of them.
[单选题]相同社会特征的人群的汇集,城市社会的基本单元称. A.邻里 B.社区 C.社会区 D.社会空间
[单选题]Let the company know right off the bat that you believe in this person. What does right off the bat mean?得分/总分 A. playing B. a person batting C. hitting D. immediately
[单选题]F.C.( )的简称.A.加工中心B.计算机控制系统C.永磁式伺服系统D.柔性制造单元.
[判断题]三相电路的有功功率,在任何情况下都可以用二瓦计法进行测量.
[判断题]比率能够综合反映与比率计算相关的某一报表的联系,但给人们不保险的最终印象.
[名词解释]公开市场活动
[单选题]宅中卧室、厨房、浴室的门宽一般取为( ).A.1000、900、800B.900、800、700C.900、800、700D.900、900、900
[判断题]要进行准确的表达,主要在于正确地选用词语.( )
[单选题]网络管理员使用Tracert命令来跟踪到达外部某网站服务器的路径时,其显示信息都是“*”,则原因可能是( ) A、 某台路由器关闭了ICMP功能 B、 目标IP地址不存在 C、 网关没有到达目的网络的路由 D、 这是正常现象
[单选题]定时插补的时间间隔下限的主要决定因素是( ).A.完成一次正向运动学计算的时间B.完成一次逆向运动学计算的时间C.完成一次正向动力学计算的时间D.完成一次逆向动力学计算的时间
[单选题]在地形图上有高程分别为26m、27m、28m、29m、30m、31m、32m的等高线,则需加粗的等高线为( )m. A.26、31 B.27、32 C.29 D.30
[单选题]卧室净高常取_____ mm A..2.2~2.4 B.2.8~3.0 C..3.0~3.6 D.4.2~6.0
[单选题]煤被一场大雨淋湿后,煤的干燥基碳的百分含量( ).A、升高 B、降低 C、不变 D、不确定
[单选题]关于朗格汉斯细胞,哪项错误( ). A、 A: 分布于棘层 B、 B: 胞质含板层颗粒 C、 C: 能捕获抗原 D、 D: 是抗原呈递细胞 E、 E: 胞质含伯贝克颗粒
[多选题]以下是关于曹操及其作品的评价.正确的是A.他是建安文学新局面的开创者 B.作品以四、五言为主C.作品风格清新明快 D.《短歌行》是他的一首政治抒情诗
[判断题]精密度与准确度的关系:若一个方法的精密度好,则该方法的准确度也一定好.精密度反映的是系统误差,只有消除了系统误差,方法才准确.( )
[单选题]测量焦饼中心温度时,在推焦前( )小时开始测量. A.3B.4C.2D.以上都不正确
[问答题]思想提炼要达到真实、深刻、新颖的程度,可以从若干方面努力.请简要阐述.
[单选题]利用财务杠杆,给企业带来破产风险或普通股收益发生大幅度变动的风险,称为 A.经营风险B.财务风险C.投资风险D.资金风险