大学MOOC 维修电工(考证)(西宁城市职业技术学院)1454650165 最新慕课完整章节测试答案
1- 初识模拟电子技术从二极管开始
1 测试进阶
1、单选题:
PN结加正向电压时,空间电荷区将
选项:
A: 变窄
B: 变宽
C: 不变
D: 不确定
答案: 【 变窄】点我阅读全文
1、单选题:
PN结加正向电压时,空间电荷区将
选项:
A: 变窄
B: 变宽
C: 不变
D: 不确定
答案: 【 变窄】点我阅读全文
1、单选题:
企业将融资租入的固定资产视同自有的固定资产,体现的会计信息质量要求是( )
选项:
A: 相关性
B: 可比性
C: 实质重于形式
D: 重要性
答案: 【 实质重于形式】点我阅读全文
1、单选题:
卢梭认为,最早的语言产生于?
选项:
A: 劳动
B: 激情
C: 需要
D: 社交
答案: 【 激情】点我阅读全文
1、多选题:
按照热量传递的途径不同,我们一般把传热分为
选项:
A: 热传导
B: 热对流
C: 热辐射
D: 热扩散
答案: 【 热传导;
热对流;
热辐射】点我阅读全文
1、单选题:
经营者储存超过实际需要库存量的货物,以防万一出现供应商延期交货或不能交货,这种超过实际需要量的库存被称为( )
选项:
A: 安全库存
B: 多余库存
C: 附加库存
D: 过量库存
答案: 【 安全库存】点我阅读全文
1、单选题:
Questions 1 to 5 are based on the following passage.The phrase almost completes itself; midlife crisis. It's the stage in the middle of the journey when people feel youth vanishing, their prospects narrowing and death approaching. There's only one problem with the cliche (套话). It isn't true. "In fact, there is almost no hard evidence for midlife crisis other than a few small pilot studies conducted decades ago," Barbara Hagerty writes in her new book, Life Reimagined. The bulk of the research shows that there may be a pause, or a shifting of gears in the 40 s or 50 s, but this shift "can be exciting, rather than terrifying". Barbara Hagerty looks at some of the features of people who turn midlife into a rebirth. They break routines, because "autopilot is death". They choose purpose over happiness—having a clear sense of purpose even reduces the risk of Alzheimer's disease. They give priority to relationships, as careers often recede (逐渐淡化). Life Reimagined paints a picture of middle age that is far from gloomy. Midlife seems like the second big phase of decision-making. Your identity has been formed; you've built up your resources; and now you have the chance to take the big risks precisely because your foundation is already secure. Karl Barth described midlife precisely this way. At middle age, he wrote, "the sowing is behind; now is the time to reap. The run has been taken; now is the time to leap. Preparation has been made; now is the time for the venture of the work itself." The middle-aged person, Barth continued, can see death in the distance, but moves with a "measured haste" to get big new things done while there is still time. What Barth wrote decades ago is even truer today. People are healthy and energetic longer. We have presidential candidates running for their first term in office at age 68, 69 and 74. A longer lifespan is changing the narrative structure of life itself. What could have been considered the beginning of a descent is now a potential turning point—the turning point you are most equipped to take full advantage of.1. What does the author think of the phrase "midlife crisis"?
选项:
A: A. It has led to a lot of debate.
B: B. It is widely acknowledged.
C: C. It is no longer fashionable.
D: D. It misrepresents real life.
答案: 【 B. It is widely acknowledged.】点我阅读全文
1、单选题:
物体做曲线运动的条件为( )
选项:
A: 物体运动的初速度不为0
B: 物体所受合外力为变力
C: 物体所受的合外力的方向与速度的方向不在同一条直线上
D: 物体所受的合外力的方向与加速度的方向不在同一条直线上
答案: 【 物体所受的合外力的方向与速度的方向不在同一条直线上】点我阅读全文
1、单选题:
横列式会让站设两条到发线,一般应设于( )。
选项:
A: 分设于正线两侧
B: 两正线中间
C: 设于站房对侧
D: 设在旅客站房对侧到发线与正线之间
答案: 【 分设于正线两侧】点我阅读全文
1、单选题:
下列不属于中医美容的有( )
选项:
A: 化妆修饰
B: 中药内服
C: 气功美容
D: 推拿美容
答案: 【 化妆修饰 】点我阅读全文
1、单选题:
《偶像练习生》、《创造101》的粉丝积极参与线上投票,传统意义上的观众转而成为新生代偶像的幕后推手,观众身份的转变说明:
选项:
A: 媒介融合重塑传受角色
B: 媒介融合重塑内容生产与分发方式
C: 媒介融合重塑媒介策略
D: 媒介融合没有改变传统的媒介格局
答案: 【 媒介融合重塑传受角色】点我阅读全文