| In the United States, boys and girls
start school when they are five years old. In some states they must stay in
school until they are sixteen. Most students are seventeen years old when they
graduate from secondary school (中学). Another name for secondary school is high
school. Most children go to public elementary schools (小学) and secondary schools. The parents of public school pupils do not have to pay directly for these children’s education because tax money supports the public schools. If a child attends a private school, his parents pay the school for the child’s education. Today about half of the high school graduates go on to colleges and universities. Some colleges and universities receive tax money from the government. A student at a state university does not have to pay much if his parents live in that state. Priva A. Schools in the USA B. Elementary Schools in the USA C. Secondary Schools in the USA D. Colleges and Universities in the USA [单选题]公安部门在查处治安、刑事案件时，发现擅自从事娱乐场所经营活动的，应当依法予以（ ）
A.撤销 B.吊销 C.取缔 D.处罚 [判断题][T]B-B-A-021 4 1 3
在使用便携式振动测量仪时,探头必须紧贴被测物体,且与测量面垂直。 A.正确 B.错误 [多选题]设备故障属于（ ）情况列安全信息。
A.路内其他单位设备原因等影响 B.使用单位操作不当 C.营业线施工妨碍 D.水害、冰害、雪害等自然灾害 [简答题]大白猪有哪些特点及如何利用？
[单项选择]安全防范的项目进度计划制定中，（）往往作为高层计划，用于规划项目整体进度。
A. 里程碑计划 B. 甘特图计划 C. 分层次的进度计划体系 D. 目标考核计划 [单项选择]下列有关促胰液素发现历程的叙述，不正确的是（）
A. 促胰液素是人们发现的第一种激素，是由胰腺分泌的 B. 沃泰默没有成功，是因为他囿于定论，没有大胆去质疑、探索和创新 C. 斯他林和贝利斯在沃泰默研究的基础上，勇于向权威观点挑战，大胆质疑、探索创新是成功的关键 D. 促胰液素是由小肠黏膜分泌的，作用于胰腺，促进胰腺分泌胰液 [单选题]高速接触网中,接触线的材质应具有较好的耐热性能,一般要求软化点在( )以上,以适应较高载流量。
A.300℃ B..400℃ C.500℃ D.600℃ 我来回答: 提交
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