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Nearly 600,000 Americans lost their jobs this past month, pushing the nation’s unemployment rate (失业率) to 7.6 percent. But not all of those fired workers are sitting at home, reading the job advertisements and waiting for the phone to ring. Thousands of people are returning to school, making public colleges and universities among the few bright places in the disappointing US economy. At a time when many Americans have had their work hours cut or have even lost their jobs, Sherian Huddleston is working overtime. She works at Middle Tennessee State University (MTSU) where she oversees (监督) the enrollment (注册) of new students. The university’s population grew by 800 students this term —an increase of 4 percent over last spring’s enrollment. Huddleston says seeing the enrollment rise in a failing economy is not unexpected. 'When people are out of work,' she points out, 'they will ask 'What else can I do?’ or 'What other careers can I follow?’ They will often return to school if they have not completed a degree before.' Older returning students aren’t the only ones increasing the enrollment at MTSU. Huddleston says she’s also seeing an increase in student transfers (转移). 'Students who went out of state, or even within the state, to more expensive schools are transferring to public schools to make use of the lower cost of going to school here,' she explains. 小题1:Which is the best title for the passage? A.The Falling American Economy B.College Enrollment up in a Down Economy C.Colleges Have More Students Than Before D.Going to College Is No Longer Difficult 小题2:According to the passage, many students return to school ______. A.to make more money B.to read job advertisements C.to complete a degree D.to ask their schoolmates for help 小题3:Many students are transferring to public schools mainly because ______. A.public schools provide better education B.public schools offer better jobs to their students C.they don’t want to be influenced by the falling economy D.the cost of public schools is lower and they can save money 小题4:Which of the following is TRUE about Sherian Huddleston? A.She is working more hours than before because of the worsening economy. B.She is a student of Middle Tennessee State University. C.She disagrees with those who are returning to school. D.She is surprised to see the enrollment go up.
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【简答题】胃液中的盐酸有哪些生理作用?
【简答题】说明下列情况下无载电动势的变化:(1) 每极磁通减少10%,其他不变;(2) 励磁电流增大10%,其他不变;(3) 电机转速增加20%,其他不变。
【判断题】数控系统里面的 PLC 采用的是独立的 PLC 。
A.
正确
B.
错误
【单选题】在 UI 设计中,关于网点密度的描述正确的是( )
A.
“网点密度”是指每毫米所能打印的点数 。
B.
“网点密度”简称 PPI 。
C.
“网点密度”用来描述印刷品的打印精度。
D.
“网点密度”是指每毫米所能打印的像素数 。
【单选题】在uI设计中,关于网点密度的描述正确的是
A.
网点密度简称ppI
B.
网点密度用来描述印刷品的打印精度
C.
网点密度是指每毫米所能打印的点数
D.
网点密度是指每毫米所能打印的像素数
【单选题】下列不属于控制修改程序的副作用的是哪一个?( )
A.
按模块把修改分组
B.
自顶向下地安排修改顺序
C.
每次仅修改同组的几个模块
D.
对于每一个修改了的模块,要首先确定修改带来的副作用再开始下一个模块的修改
【单选题】在 UI 设计中,关于网点密度的描述正确的是
A.
“网点密度”简称 PPI
B.
“网点密度”用来描述印刷品的打印精度。
C.
“网点密度”是指每毫米所能打印的点数 。
D.
“网点密度”是指每毫米所能打印的像素数 。
【多选题】关于胃液中的主要成分及其生理作用正确的有哪些
A.
胃液中除有大量水分外,其主要成分有盐酸、胃蛋白酶、黏液、内因子等。
B.
盐酸的主要生理作用是:①为胃蛋白酶提供适宜的酸性环境;②使食物中的蛋白质变性;③杀灭细菌;④有利于铁、钙的吸收。
C.
胃蛋白酶原在盐酸的催化下转变为胃蛋白酶。后者分解蛋白质。
D.
黏液有润滑和保护肠黏膜。
E.
内因子有保护的作用但不利于维生素B12的吸收。
【多选题】下列哪些是胰液的作用?
A.
催化蛋白质、淀粉、麦芽糖、脂肪的水解。
B.
碱性成分碳酸氢盐有中和胃酸的作用,保护小肠粘膜。
C.
碱性成分碳酸氢盐有中和胃酸的作用,为小肠内的消化酶提供碱性环境
D.
乳化脂肪
【简答题】胃液中的盐酸有哪些作用?
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