1.  >>  成人高等教育 / 机械制图
 成人高等教育 / 机械制图

正投影法的基本特性( )
  • A、
    实形性
  • B、
    积聚性
  • C、
    类比性
  • D、
    累积性
  • E、
    平行性
  积分
 参考答案:
 佳题速递:
  • 2007年11月10日,甲将自己家的拖拉机借给邻居乙使用。11月20日,乙向甲提出购买此拖拉机,甲同意。双方商定了价格,并约定5天后付钱。11月22日此拖拉机被盗。问由谁来承担风险? 物权法
  • 1[阅读题]   Little Tommy was doing very badly in math. His parents had tried everything—tutors (家庭教师), cards, special learning centers—in short, everything they could think of. Finally they took Tommy to a catholic (天主教的) school.    After the first day, little Tommy came home with a very serious look on his face. He didn’t kiss his mother hello. Instead, he went straight to his room and started studying. Books and papers were spread (铺开) out all over the room and little Tommy was hard at work. His mother was surprised. She called him down to dinner and as soon as he finished eating, he went back to his room, without a word. In no time he was back hitting the books as hard as before. This went on for some time, day after day while the mother tried to understand what was happening.    Finally, little Tommy brought home his report card. He quietly put it on the table and went up to his room and hit the books. His mom looked at it and to her surprise, little Tommy got an A in math. She could no longer hold her curiosity (好奇心). She went to his room and asked, “Son, what was it? Was it the nuns (修女)?”    Little Tommy looked at her and shook his head, “No. ”    “Well then,” she asked again. “WHAT was it?”    Little Tommy looked at her and said, “Well, on the first day of school, when I saw that man nailed (钉) to the plus sign (加号), I knew they weren’t joking. ”41. Why did Tommy’s parents send him to a catholic school? A. Because he could eat well there.B. Because he could earn more about nuns.C. Because his parents wanted him to do better in his math.D. Because his parents didn’t want him to learn math any more.42. Tommy’s mother felt surprised that his son ______.A. was still the same as usualB. ate so much at dinnerC. kissed her hello after schoolD. worked hard but said little43. “Hitting the books” means “______" in Chinese.A. 用功B. 捶书C. 发泄D. 振作44. The last sentence in the passage shows that ______.A. Tommy felt sorry for the mailB. Tommy was afraid of being nailedC. Tommy didn’t like the plus signD. Tommy liked playing jokes on others45. From the passage, we can infer (推断) that ____.A. teachers should be strict with their studentsB. mistaking (误解) might do good sometimesC. a catholic school is much better than other onesD. nuns are good at helping children with their math 大学英语(I)
  • 5[简答题] 简述砌体抗剪强度的主要影响因素有哪些?砌体工程
  • 婴儿喝完奶后容易漾奶,这是不正常的现象,说明婴儿生病了。 学前儿童保育学
  • [单选题] 下列适用个人所得税5 %一35 %的五级超额累进税率的是(  ) A.劳务所得 B.工资薪金 C.稿酬所得 D.个体工商户所得税收筹划
  • [单选题] 测水不溶性灰分时,需用(  )先溶解总灰分,过滤后,再高温处理。 A.蒸馏水 B.纯净水 C.去离子水 D.矿泉水食品卫生与检验