[填空题]某地高血压的患病率约为20%,抽样调查时至少需调查人数为(设α=0.05 d=0.1P)
[问答题]简述实践的基本特征.
[单选题]法定财团一般包括破产宣告时属于破产人的财产以及应由破产人将来行使的( ),加上破产宣告后破产人新取得的财产.A.财产B.财产请求权C.财产所有权D.请求权的总和
[多选题]三相异步电动机的数学模型包括( ). A、 电压方程 B、 磁链方程 C、 转矩方程 D、 运动方程
[判断题]作物只能够吸收利用表层土壤的水分
[单选题]早期的计算机体积大、耗能高、速度慢,其主要原因是制约于____. A.工艺水平 B.元器件 C.设计水平 D.元材料
[单选题]下列不是多媒体制作软件的是 A.PowerPoint B.Authorware C.Winzip D.director
[问答题]企业制定科学合理的发展战略的重要意义体现在( )
[单选题]在计算机中通常表示英文字符的编码是 A.音码 B.形码 C.GB-2312码 D.ASCII码
[单选题]在垄断竞争市场上,厂商达到长期均衡时,下列哪种说法是正确的( ).A.MC.AC B.MC>ACC.MC
[单选题]设A={1 1/2 1},B={1 -1/0 1},C=(A 0/O B),则|C|=( )
[判断题]事务型数据流图是由输入、变换、输出三部分组成.( )
[判断题]同一生物体,同一组织细胞内催化功能、分子结构、理化性质不同的酶为同工酶.( )
[判断题]对于人员测评的要素指标要确保标准、直观、有效、明确,避免重复或漏缺现象的发生.
[阅读理解]When you take a walk in any of the cities in the west, you often see a lot of people walking dogs. It is still true that a dog is the most useful and faithful animal in the world, but the reason why people keep a dog has change d in the old days people used to train dogs to protect themselves against attacks by other beasts. And later they came to realize that a dog was not only useful for protection but willing to obey his master. For example, when people used dogs for hunting, the dogs would not eat what was caught without permission. But now people in the city need not protect themselves against attacks of animals. Why do they keep dogs, then? Some people keep dogs to protect themselves from robbery. But the most important reason is for companionship. For a child, a dog is his best friend when he has no friends to play with. For young couples, a dog is their child when they have no children. For old couples, a dog is also their child when their real children have grown up. So the main reason why people keep dogs has changed from protection to friendship. 1. A c cording to the passage, in the old days people trained dogs ______. A. For protection against robbery B. Just for fun C. For companionship D. For protection against other animals 2. The word companionship may mean ______. A. Worship B. Treasure C. Friendly relationship D. Partnership 3. The dogs were used for hunting be cause ______. A. They were good hunters B. They obeyed their masters C. They were useful for protection D. They did not eat other animals 4. The most important reason for people to keep dogs now is ______. A. They need companion B. They like children C. They enjoy hunting D. They want to protect themselves 5. We can infer (推断) from the passage that ______. A. Dogs can be helpful to those who need company B. City people always feel lonely C. Dogs can be interesting D. The city can be a very dangerous place
[单选题]哪种市场结构能容易促进技术进步( )A.垄断 B.垄断竞争C.完全竞争 D.寡头垄断
[单选题]患者甲亢行双侧甲状腺次全切除术后第3天出现面部和手脚麻木强直感,以手指叩耳前部刺激面神经时,可诱发同侧口角抽动,可能的原因是( ). A.双侧喉返神经损伤 B.喉头水肿 C.甲状腺危象 D.甲状旁腺被误切
[单选题]在计算机中通常表示英文字符的编码是 A.音码 B.形码 C.GB-2312码 D.ASCII码
[判断题]用益物权是从所有权分离出来的他物权,是指对他人所有的物使用和收益的权利.( )
[单选题]下列词语中错别字最多的一组是( ) A.气息奄奄 无裨于事 寥若星辰 风马牛不相及 B朝暾夕月 雕栏玉彻 夙兴夜寐 口惠而实不至 C.桀骜不驯 醍醐灌顶 箪食壶浆 吃一堑长一智 D.含英咀华 濯发难数 坚贞不逾 言必行,行必果
[单选题]脂酸β-氧化的限速酶是( )A.肉碱脂酰转移酶I B.脂酰辅酶A脱氢酶 C.β-羟脂酰辅酶A脱氢酶D.脂酰辅酶A合成酶 E.β-酮脂酰辅酶A硫解酶