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
>
学位英语
>
浏览试题
[单选题]
The origin of Chinese writing can be back to ancient China although we are not certain of the date of its invention(1分)
A
looked
B
found
C
traced
D
related
收藏
查看答案
参考答案
试题答案：
C
答案解释：
解题思路：考察近义词辨析。look back 回顾 find back 找回 trace back 追随 relate联系，一般不与back连用。
相关题目
Do you consider____ more people over?
第三大题
24.5 How many different kinds of anxiety are suggested by the research?(2分)
Hearing the news from her neighbor, she was _______ than angry.(1分)
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
She is distracted by a new message on her facebook, if _______ the instructions.(1分)
24.I was walking along the deserted main street of a small seaside town in the north of Engllooking for somewhere to make a phone call. My car had broken down outside the town I wanted to contact the AA. The street ran parallel to the sea was joined to it by a number of narrow side streets. Low grey clouds were drifting across the sky there was a cold damp wind blowing off the sea which nearly threw me off my feet every time I crossed one of the side streets. It has rained in the night water was dripping from the bare trees that lined the street. I was glad that I was wearing a thick coat.
2.5 What is the advantage of online classes?(1分)
4. (A)similar (B)same (C)different (D)various
写作专项练习(2)
热门试题
1.
17.下列有关即时性强制措施的表述，正确的是【 】
2.
11.若一位教师可讲授多门课程，每门课程只有一位教师讲授，则教师实体与课程实体之间的联系类型是
3.
4.
教育学选择题：1～12小题，每小题2分，共24分。在每小题给出的四个选项中。只有一项是符合题目要求的。
5.
More and more high－rise buildings have been built in big cities ________ space.(1分)
热门试卷
成人高考专升本《政治》模拟试卷
去做题
已有3416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2213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1897做题
湖北成考专升本政治真题（2021年）
去做题
已有1355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1194做题
