题目内容 (请给出正确答案)
提问人:网友13***556 发布时间:2023年1月15日 17:11
[]

通常只要投入凝汽器换热管总数()左右的胶球即可满足运行中。

A . 1%

B . 10%

C . 50%

D . 80%

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)
更多“通常只要投入凝汽器换热管总数()左右的胶球即可满足运行中。”相关的问题
Online Degrees Today, you can earn a degree from a major university without ever having sat in one of their classrooms. Many colleges and universities are jumping on the distance learning bandwagon and offering on- line courses and degree programs. In this article we’ll look at how online degrees work, what you should look for if you are pursuing a degree via the online option, and what employers think of online degrees. Online Learning Programs With a computer, an Internet connection and a little self-discipline, you can earn a degree. Online degree programs follow much the same routines as traditional learning, with a few twists. There are lectures, but they won’t be in person. There are assignments, but you won’t hand them to your instructor. There are exams, but you won’t be able to look at your neighbor’s paper. There may be a set time that "class" begins, but you don’t have to be there then. In most situations, you are free to "go to class" when it fits your schedule. If you get a phone call during class, you don’t have to miss anything. If you get sick, you don’t have to ask for someone’s notes, and you just visit the lecture later. You’ll communicate with your instructor by e-mail, chat rooms, bulletin boards, and instant messaging. Your classroom will live in a special software program that uses text chat and bulletin boards, as well as streaming audio or recorded lectures. You may be put into a virtual workgroup with other students and be required to solve a problem. You may have to work through interactive puzzles and quizzes. Contrary to popular belief, you will have contact with other students and the instructor. Depending on the program and institution, distance learning may consist of synchronous (live) sessions or asynchronous (non-live) sessions. Transcripts and notes from lectures are archived, so you can always go back if you missed something. If there are live sessions with discussions among students, you can go back to those as well. Assignments may even be returned with audio clips so your instructors can convey their tone of voice along with their comments. Printed documents may be sent to you through the mail, or you may have the options of printing them yourself or reading them online. Some schools require an initial "boot camp" held at the campus, where you will meet the other students, instructors and support personnel. You’ll learn how to use the technology, learn about the library and reference systems, and begin your coursework. Evaluating the Program So once you know the school is accredited, is the decision easy Not necessarily. There are still a lot of questions to ask before you make your selection, such as: ·How is the course presented Investigate the method by which the instructor gives lectures. Does the instructor simply put the lecture online as text Are there accompanying slides Is there any interaction Is there video or audio Are exams given How are assignments turned in The format of the course is sometimes as important as the content. Great content is more easily absorbed if it’s done in a dynamic and innovative manner that involves interaction between the student and instructor as well as interaction with the content itself. Online learning technology provides many opportunities for innovation. Find a school that takes advantage of it. ·How do students interact with each other Is there an established method for interaction and congregating Online programs can use chat rooms, instant messaging, teleconferencing, and video conferencing to communicate. The key is to find a program that has this interaction built into it and even requires it. How the online community functions should be very important to both the instructor and the educational institution. ·Are the instructors qualified Check out the credentials and degrees the instructors hold, as well as their knowledge of online learning and its differences from classroom learning. What kind of support do the instructors get for their online courses If technical problems arise, is there someone to turn to A school that is dedicated to its online programs will have the development staff and the support staff to make it successful. Instructors (and students) have to be able to adapt to changing technology. ·What kind of reputation does the school have It may seem simple—a good school will have a good online program. That may be true, but it is also probable that its online program is still too new to judge, so you’re left with nothing but the reputation of the school’s traditional programs. This reputation, however, may not be as straightforward as you think. You can look at the overall quality of the school and make a judgment, but there may be weaknesses in the program in which you are interested. It’s not uncommon for a great school to have a weak program or two. ·How are students evaluated Earning a degree should not mean just that—earning it. If students aren’t assessed properly and degrees are handed out with little or no verification that any knowledge has been transferred from the instructor to the student, then how can the program be rated Students, particularly adult students, learn more by doing than by simply listening. For this reason, it is important to ensure that part of the program involves applying what has been learned. The Employer’s View The big question in everyone’s mind is, "Is an online degree from an accredited college or university seen by potential employers as a lesser degree" Vault. com, a career network Website, did a survey of 239 professionals. According to the results, 77 percent of respondents believe that an online degree earned at an accredited institution is more credible. Other sources did studies that revealed that there is little if any difference in the quality of education received through online distance learning versus traditional classrooms. John Losak found similar results in his own study. He analyzed graduation rates, time to graduation, and knowledge, as well as other elements. He found the students performed as well or better in online courses. As more and more people get online degrees and use them in the workforce, managers will begin to feel more secure about the quality of education these people have. If John’s study holds up on a larger scale, then the future of getting jobs and advancements based on online degrees will be bright. Until then, choose schools carefully, and check for accreditation and strong programs. When you’ve completed the degree, go to job interviews armed with information to counter any questions about the quality or validity of your degree. Make sure the interviewer knows how you achieved the degree, how you worked it into a busy schedule, how you overcame any obstacles. It will show a self- motivation and discipline that may be just the qualities the company is looking for.
A.To use chat rooms and instant messaging to communicate.B.To find a program that has interaction built into it.C.To find an established method for interaction.D.To use video conferencing to communicate.
点击查看答案
关于抑癌基因的叙述,下列哪一系是正确的A.具有抑制细胞增殖的作用B.与癌基因的表达无关C.缺失与
关于抑癌基因的叙述,下列哪一系是正确的 A.具有抑制细胞增殖的作用 B.与癌基因的表达无关 C.缺失与细胞的增值分化无关 D.不存在于正常人类细胞中 E.肿瘤细胞出现时才表达
点击查看答案
重大劳动争议包括重大的集体劳动争议和(),特别是订立、变更集体劳动合同争议以及履行集体合同争议。
A.团队劳动争议
B.团体劳动争议
C.团队合同争议
D.团队业绩争议
点击查看答案
甲厂准备兴建职工宿舍楼一处,乙建筑公司承包该项工程,下列哪些情形下,乙公司可以顺延工程日期?( )
A.隐蔽工程在隐蔽以前,乙公司通知甲厂派人检查,但甲接到通知后,过了15天,未派人检查
B.甲方未依约定的规格及标准提供建筑材料
C.施工期间,因阴雨连绵,致工程进度缓慢
D.施工期间,乙公司某重要设备被小偷盗走
点击查看答案
接触网断电及线路封锁施工作业原则上应贯彻“施工不行车,行车不施工”的原则,特殊情况(如卸石渣)封锁区域需要办理调车作业时应取得施工负责人的准许。
点击查看答案
培育职业精神和树立家庭美德是要为解决好()的人生重大课题,打下良好的基础。
A.自主创新
B.择业创业
C.立业成家
D.家庭美满
点击查看答案
基督教堂的圣坛面向西方,是为了面向()(地名)。
点击查看答案
社会判断理论认为,当一种新观点处于个体的()时,最有可能引起个体态度的改变。
A.接受区
B.潜意识区
C.拒绝区
D.不明朗区
点击查看答案
()是指物料在重力作用下自由落入粉碎室,经短暂而简单粉碎后直接排出。
A.自由粉碎
B.滞塞粉碎
C.开路粉碎
D.闭路粉碎
点击查看答案
董先生,40岁,因车祸导致颅脑损伤昏迷已5天,其营养疗法宜选用的补给途径是()。
A.口服 B.管饲 C.经周围静脉 D.经中心静脉
点击查看答案
油管的作用是保证液压系统的油液循环和()。
点击查看答案
广告,即确定的组织或个人为了一定的目的,【145】付出的费用,在规定的时间【146】,按照要求,由指定的媒体,将真实信息传播出去的一种【147】活动。这个定义从实践中来,【148】能反映广告的本质属性,也能够解释除商业广告【149】的一些广告现象。如“征婚启事”“政府通告”“聚会通知”等一些与经济无关的公益广告。(145)
A.凭借B.依靠C.根据D.只要
点击查看答案

M7120平面磨床主电路中共有四台电动机都属于长期工作的。

点击查看答案
据《劳动合同法》的规定,下列各项中,劳动者不需要事先告知即可解除劳动合同的是( )。
A.用人单位未按照劳动合同约定提供劳动保护或者劳动条件B.用人单位违章指挥、强令冒险作业危及劳动者人身安全C.用人单位未及时足额支付劳动报酬D.用人单位未依法为劳动者缴纳社会保险费
点击查看答案
古代百姓与官员打交道主要要是纳税和打官司。
点击查看答案
客服
TOP