注意：此页面搜索的是所有试题
2024年国家开放大学答案
组合逻辑电路一般由（）组合而成。
(单选题)
.门电路
.触发器
.计数器
.寄存器
政府调控价格包括（）。(多选题)
.政府定价
.指导价
.最高限价
.最低限价
Reading tasks
Science Times<center>Portable Phones –Walk and Talk! </center>
Have you ever called up a friend and heard this: ‘Sorry, he’s not in. Can you call back later’ Have you ever been in a dirty phone box on a cold night and found the phone out of order Have you ever thought how wonderful it would be if you could talk to your friends any time you wanted to If so, then read on …
A：
Ever since Bell patented the telephone in 1876, we’ve been living in the age of instant communication. But there has always been a restriction – you need to find a phone. And that isn’t always easy. OK, we’ve had car phones since the 1950s. But the first car phones were enormous .The machinery filled the boot of the car! More than a portable phone, it was a mobile phone box! One of the first users was a doctor in Sweden. Unfortunately, the phone needed so much power（大量的电力） that he could only make two calls before the battery went dead. The first to his patient, and the second to the garage to get someone to come and fix his flat battery.
By the mid-1960s phones were small enough to fit into the front of a car, but unfortunately, they were still too heavy for people to carry around. They were also extremely expensive. So, it was no surprise that they didn’t become popular
B：
And then Mr Cooper made a call. On 3 April 1973, while walking along a street in New York, Motorola employee Martin Cooper took out his portable phone, dialed a number and made a call to a rival phone company. I don’t know what he said – perhaps, ‘Nobody has ever done this before!’ – but I bet he felt pretty happy when he hung up. He knew that his company was ahead of the competition.
C：
Now – just over ten years later – the DynaTAC 8000X portable cellular phone has arrived in the shops, and this week I’ve been testing it. I must say I’m impressed. The first thing you notice is how small and light it is. It weighs a little less than a bag of sugar and is about the same size as a brick – about twenty centimetres long. It looks really smart, too. And you can talk for almost half an hour without rechargingthe battery! You can also turn down the volume in case the phone goes off when you’re in a meeting. The disadvantage The price. It costs almost 3,000!
But don’t worry. The price will come down and soon everyone will have one
D：
And while I have my crystal ball out, here are some more predictions about how we will communicate in the future ... . Firstly, I think people will forget how to write because all communications will be oral. And one day before too long we will have phones with 3D video screens which allow you to see your friends and watch TV! More good news: phone calls will be free – they’ll be paid for by advertising! And finally, I believe that eventually humans in the future will have phones in our brains! With a speaker in an ear, and a microphone in a tooth, we will be able to dial numbers just by saying them.
But until then, you could do worse than buy yourself a Motorola DynaTAC. Become mobile and say goodbye to those cold calls in dirty phone boxes.
Match headings 1–4 with paragraphs A-D in the text.
(1) (1) The future
(2) (2) The first call
(3) (3) Testing the product
(4) (4) The historical background__4__(完形填空)
.A
.B
.C
.D
我国建设社会主义法治国家的原则和要求是（ ）(多选题)
.宪法和法律至上原则
.法律面前人人平等原则
.依法行政原则
.司法独立原则
.人权保障原则
与杆件的分配弯矩有关的是（ ）。(单选题)
.分配系数.,.
传递系数.,.
<em>A</em>+<em>B</em>.,.
结点位移
举行签约仪式时，双方代表要先在对方的文本上签字，之后互相交换，再在己方文本上签字。
(判断题)
.对
.错
以服务类型进行分类，跨境电商可以分为（ ）(多选题)
.自营型平台
. 第三方开放平台
. 信息服务平台
. 在线交易平台
下列急救做法中，错误的是（ ）。(单选题)
.如果玻璃刺入幼儿身体，应立即拔出后送医，防止受伤严重。.,.
幼儿发生切伤出血，身体受伤部位尽量放得高于心脏，这样容易止血。.,.
动脉出血时，可用手指或手掌等将出血的血管上端（近心端）用力压向贴邻的骨骼上，以阻断血流，达到暂时止血的目的。.,.
止血带止血法每隔半小时左右，应放松止血带，以免组织坏死。
19、慢性支气管炎咳痰的特点是：(单选题)
.黄脓痰
.白色泡沫痰
.白色粘液痰
.痰中带血
一般民用燃气灶具烟气中CO含量要求为( )。(单选题)
.≤0.05%
.≤0.08%
.≥0.08%
.≥0.05%
智能化系统工程项目后评估一般在智能化系统工程竣工验收和智能化系统正式运营3个月以后进行。(判断题)
.对
.错
Match these thoughts to the other character in each cartoon. Pay attention to the underlined expressions. （4 points）<p class="a"><p class="a">(1) She’d prefer to marry someone who’s more like her.1 <p class="a">(2) I’d prefer not to eat leaves all the time.2 <p class="a">(3) I’d prefer us to go to a cricket match!3 <p class="a">(4) She’d prefer us not to have fish and chips again.4 __2__(完形填空)
.rather eat
.rather we tried
.rather we didn’t go
.rather not marry
现金等价物的特点不包括（ ）(单选题)
.流动性强.,.
价值变动风险大.,.
持有期限短.,.
易于转换为已知金额现金
以下哪个不是5S的目标？(单选题)
.工作变换时，工具、物品可以马上找到，寻找时间为零
.现场整洁，不良品为零
.排除故障位置准确，返工维修故障为零
.努力降低成本、减少消耗、浪费为零
明星型产品相对市场占有率低，但销售增长率高。(判断题)
.对
.错