更多“民用爆炸物品使用单位申请购买民用爆炸物品的，应当向所在地（）”相关的问题
适合反映2011年我国城镇和农村消费支出结构情况的图形是（ ）。[2012年初级真题]
A.环形图 B.直方图 C.折线图 D.散点图
点击查看答案
按照马斯洛的理论，免于恐惧的需要属于（）
A.生理需要 B.生长性需要 C.安全需要量 D.缺失性需要
点击查看答案
除一般财务会计的特征外，相对于高级财务会计，中级财务会计具有哪些特点?
点击查看答案
1942年，毛泽东《在延安文艺座谈会上的讲话》由我们的文艺为什么人服务和怎么服务的问题拓展开来，涉及到文艺理论的一些重要方面，其中一个首要命题便是（）：“作为观念形态的文艺作品，都是一定的（）在人类头脑中的反映的产物。革命的文艺，则是（）在革命作家头脑中的反映的产物。”
点击查看答案
硅二极管的正向电压在0.7V的基础上增加10%,它的电流将( )。
A. 基本不变 B. 增加10％ C. 增加10％以上 D. 减小10%
点击查看答案
下列造成丝条跳出加弹机冷却板的原因是（）。
A.冷却板位置不正
B.拉伸比过大
C.变形热箱温度过高
D.定型热箱温度过高
点击查看答案
群体性事件的最初诱因绝大部分都是特定个人或群体的合法利益受到侵害，或是自认为其合法权益受到侵害。
在健康照顾体系内实施的社会工作，目的是协助那些受到实际的和潜在的疾病或者伤害的服务对象、家庭和群体，增强、促进、维持和恢复其社会功能。这种社会工作属于（）。
A.医院社会工作
B.社区矫治
C.医务社会工作
D.个案社会工作
点击查看答案
进出口贸易融资中的押汇、贷款、贴现业务的利率按照（）执行
A . A．优惠利率
B . B．中长期贷款利率
C . C．流动资金贷款利率
D . D．人民银行公布的再贴现利率
点击查看答案
退出WORD的操作方法有( )。
A．选取“文件”菜单中的“关闭”
B．选取“文件”菜单中的“退出”
C．单击WORD工作窗口标题栏的“×”按钮
D．选取“文件”菜单中的“保存”
点击查看答案
当机器码10000001分别代表补码、压缩BCD码时，其对应的十进制真值为（）。
A.-127、11
B.-1、81
C.-127、81
D.–1、129
点击查看答案
It is difficult to say exactly how the music we call "rock" or "rock and roll" began. Its roots go back to many different countries and many different kinds of music and musicians. Rock music developed mainly from the interaction of black African and white European music. The Europeans and the African slaves who came to America during the seventeenth century each had their own different kinds of music. Black Africans used heavy drumbeats, a rough singing voice, and the calling of a melody and answer of a chorus. The white Europeans, mostly English and Scots, used a stronger melody, a less heavy beat, and instruments such as guitars, horns, and fiddles. The history of rock and roll is the history of how rock evolved from these two traditions. From the seventeenth to the twentieth century, musicians in the southern United States developed two new forms of music: the blues, usually played by blacks, and country music, played by whites. Black musicians sang the blues accompanied by a guitar. This music was similar to work songs: stories of troubles and pain, with lines that were repeated several times. The words "rock and roll" probably came from the black churches in the South, where people sang spiritual music and danced to the strong rhythms, which they called "rocking and reeling". At the same time, whites were playing country music, which was mostly traditional dancing music and slow songs that told sad stories. The singers were accompanied by string instruments such as fiddles and guitars. During this time blues and country musicians had some influence on each other, but the influence grew stronger after phonograph records became popular in the late nineteenth century. The birth of the electric guitar changed country and blues music in the 1940s. The sound of the electric guitar would become the sound of rock and roll. No one thinks of early rock and roll without thinking of Elvis Presley, the "King of Rock and Roll". Elvis was an ordinary boy. He grew up poor, learned to sing in church, and became a truck driver when he graduated from high school. No one thought that this young man with the guitar would change popular culture. But after he recorded two blues songs in Memphis, everything changed. He sang throughout the South, and teenagers went crazy over his amazing voice and his attractive performances. His music was an exciting mixture of white country and black blues. With his long hair and tight parts, he became a teenage idol. In two years, he was a national phenomenon. Elvis’s career then went downhill. He went into the army, then stopped performing and made a series of bad movies. He continued to record, but his music rarely had the life of his early songs. He remained the symbol of rock and roll, however, not only in the United States but also around the world. He died in 1977, at the age of 42, but his music did not die with him. Rock music continues to develop and change, but the heart and soul of rock is the same heart and soul that Elvis expressed.
A．the rhythms of the work songsB．a group of words in a passageC．the strings of the guitarD．a group of words in a song
点击查看答案
y4（t）=f（2t-1）
连续时间信号f（t）如习图1所示，请画出下列各信号并给以标注。
点击查看答案
平底顶杆凸轮机构如图所示,顶杆 AB 可沿导轨上下移动,偏心圆盘绕轴O 转动,轴O 位于顶杆轴线上。工作时顶杆的平底始终接触凸轮表面。该凸轮半径为R,偏心距OC= e =0.1m,凸轮绕轴O 转动的角速度为ω=2rad/s ,OC 与水平线夹角φ 。当φ =0° 时,顶杆的速度为( )。
A. 0.1 B. 0.2 C. 0.4 D. 0.8
点击查看答案
题目内容
（请给出正确答案）
参考答案
十点题库官方参考答案
（由十点题库聘请的专业题库老师提供的解答）
