搜题请搜索小程序“爱下问搜题”
问题 单项选择题

图示刚架EI=常数，截面C和D的相对转角为（）。

A.

B.

C.

D.

答案

参考答案：B

解析：

作出静定结构的MP图，在C、D截面加一单位弯矩。作出图，然后由图乘法图乘MP和图即得

完形填空

Now that final exams are history, you seem to have that extra bounce. After all, winter  1   awaits you. Get off that couch and begin the more productive life you should be living 2    our help.

Spring Festival is a 3    time to test the bonds of romance, say, with a trip to France. This idea came to Su Enlu and his girlfriend one day. They were talking about the 4    of a weekend trip when Su said, half-jokingly, that they might just go to France.

5     doing some online research and talking with people who'd been there, they decided to take the plunge. To prepare for it, they read French history and tested each other in 6     French language.

This has been one of the happiest 7     in our three-year relationship, said Su, a 22-year-old English major at the University of International Business and Economics.

Su saw no problem with asking his parents to 8     the trip for about 10,000 yuan from each side. "I'm seizing the day," he said. "Later, when I have that 9     money, I might not have time to enjoy it."

The couple 10     been to foreign countries. But in order to secure a visa, they went for travel agency to take care of their 11    . Moreover, they asked friends who study in France to be their contact person and arrange some cheap  12   during their stay abroad to save money as much as they can.

Some students, like 19-year-old freshman Nan Zhichao, have decided to use the winter holiday to get some 13    . Nan and a group of classmates are going on their own cycling tour of Hainan.

The Huazhong University of Science and Technology information major 14     the whole project himself. From booking accommodations  15    collecting mechanical supplies, to studying the weather forecast, to drawing out the route for each day, Nan worked hard to 16     every detail was right.

This trip is not only about pushing our limits, 17     about looking for adventure, said Nan. "It's also a testament to being adults, and part of a new generation of college students."

Now in Hainan, Nan's team is pedaling 18     in T-shirts and shorts, shedding some of the 19     they gained during the fall semester, and strengthening the bond of their friendships. Said Nan: "We now know each other more than we used to, even 20     months of living together."

(   ) 1. A. snow                 B. cold                        C. vacation           D. season

(   ) 2. A. to                             B. for                          C. at                     D. with

(   ) 3. A. great                  B. bad                         C. useful               D. helpful

(   ) 4. A. choice                B. possibility                C. break                      D. rest

(   ) 5. A. Before                      B. Within                     C. During             D. After

(   ) 6. A. advanced            B. basic                       C. middle             D. official

(   ) 7. A. times                 B. days                        C. months             D. seasons

(   ) 8. A. carry                 B. fund                        C. hold                 D. bring

(   ) 9. A. many                 B. much                             C. few                  D. little

(   ) 10. A. have                B. don’t                       C. are                   D. haven’t

(   ) 11. A. application               B. work                       C. plan                 D. job

(   ) 12. A. food                B. accommodations       C. clothes             D. trip

(   ) 13. A. money             B. sleep                       C. exercise            D. help

(   ) 14. A. panned             B. changed                   C. caught              D. led

(   ) 15. A. until                B. to                           C. for                   D. at

(   ) 16. A. make free         B. make colorful          C. make sure         D. make true

(   ) 17. A. but for             B. as for                             C. only also          D. but also

(   ) 18. A. on                   B. forward                   C. around             D. in

(  ) 19. A. meat                B. weight                            C. flesh                D. sweater

(   ) 20. A. after                B. in                           C. for                   D. over
查看答案
单项选择题

A punctual person is in the habit of doing a thing at the proper time and is never late in keeping an appointment.
The unpunctual man, on one hand, never does what he has to do at the proper time. He is always in a hurry and in the end loses both time and his good name. A lost thing may be found again, but lost time can never be regained. Time is more valuable than material things. In fact, time is life itself. The unpunctual man is for ever wasting and mismanaging his most valuable asset as well as other’s. The unpunctual person is always complaining that he finds no time to answer letters, or return calls or keep appointments promptly. But the man who really has a great deal to do is very careful of his time and seldom complains of want of it. He knows that he can not get through his huge amount of work unless he faithfully keeps every piece of work when it has to be attended to.
Failure to be punctual in keeping one’s appointments is the sign of disrespect towards others. If a person is invited to dinner and arrives later than the appointed time, he keeps all the other guests waiting for him. Usually this will be regarded as a great disrespect to the host and all other guests present.
Unpunctuality, moreover, is very harmful when it comes to do one’s duty, whether public or private. Imagine how it would be if those who are put in charge of important tasks failed to be at their proper place at the appointed time. A man who is known to be habitually unpunctual is never trusted by his friends or fellow men.

According to the passage, the main reason that a person is always unpunctual is that ______.

A. he has more work to do than other people
B. he is always in a hurry when he works
C. he doesn’t care much about time
D. he always mismanages and wastes his time
查看答案