首页
普通专升本
成人高考
学位英语
在线刷题
最近学习
最近学习课程
最强大脑 · 3天挑战极限记...
副标题副标题副标题副
最强大脑 · 3天挑战极限记...
副标题副标题副标题副
您现在位置：
模拟考场
>
学士学位英语
>
浏览试题
[单选题]
2.2
[37]. Care-giving strategies have some effect on infant's crying____.(1分)
A
A) in its loudness(B) in its peak period(C) in its frequency(D) in its duration
收藏
查看答案
参考答案
试题答案：
A
答案解释：
相关题目
3.Friction is a force which opposes motion. Much of the energy supplied to a complicated machine with many moving parts is wasted in overcoming this opposition. The energy is converted into useless heat. The amount thus lost can be considerably reduced and the life of the machine prolonged by careful lubrication. This reduction improves the efficiency of the machine. Another way in which friction is reduced is to substitute roller or ball bearings for the earlier type of bearing, in which the surfaces in contact move by sliding. Bearings of these later types are used very extensively in many kinds of modern machinery.It must not be assumed, however, that friction is always a disadvantage. In many instances it is highly important. Belts are often used in conveying power from one machine to another. In the absence of friction, this could not be done. The driving wheel would not run the belt, neither would the belt run the wheel to driver. Without friction, then, belted machinery could not be used. Again in the case of all motor vehicles, friction is essential in the operation of the brake. Were there no friction, there could be no brake. But even this illustration does not give an adequate picture of the importance of friction. The vehicle could not even be started if it were not for the friction exerted between the tires and the road. Nails hold in wood, and screws hold in either wood or metal by reason of friction, without which they would be useless. Walking is difficult enough on an icy pavement, but it would be wholly impossible if there were no friction at all between the shoe and the pavement.(5分)3.1Friction arises when____.(1分)A. an opposing force of motion existsB. the energy is wastedC. everything is motionlessD. a complicated machine is supplied with energy
If the babysitter comes today, please have her_______ little Jack’s shirts.(1分)
We are looking for people who are______ about oil and banking industries.(1分)
1.5The topic of this passage is ________.(1分)
The more preparation you make for it,____in the speech contest.(1分)
10. (A)remember (B)study (C)follow (D)adapt
What he told us about the affair simply doesn't make any____.
3.2 The central idea of the first paragraph is to____.(1分)
All right, it’s all for today, and I’ll meet you again_______ the weekend at the same time and place.(1分)
Voice training will be____ if you plan to go into the theatre.
热门试题
1.
2.人力资源管理从功能上看有不同模式，主要关注公平就业机会的模式是
2.
当血浆蛋白显著减少时水肿的主要原因是( )
3.
The real trouble _ their lack of confidence in their faculty.
4.
公民、法人或其他组织向人民法院起诉，人民法院已经受理的案件，当事人( )
5.
29.企业中支持信息系统运行管理、承担信息化工具支持服务的职能机构是
热门试卷
成人高考专升本《政治》模拟试卷
去做题
已有3133做题
2020年湖北成人高考专升本政治模拟试题三
去做题
已有1937做题
成人高考专升本政治考试模拟试题及答案(1)
去做题
已有1720做题
成人高考高起点语文考试高分突破试题及答案四
去做题
已有1149做题
成人高考专升本政治考试模拟试题及答案(2)
去做题
已有1055做题
