下列所描述的方向中，正确的是（ ） A．速度变化的方向与加速度方向始终一致 B．

俗语说：“名取有根”，聚落名称带“水”多与河流有关，广东有不少乡村聚落名称带“水”。农业社会时期，决定这些乡村聚落发展规模的主导条件是

A．河流水量

B．冲积平原面积

C．土壤肥力

D．河流运输能力

下列正确的叙述是 （）

A.用推法自大指根推向腕横纹，称扳门推向横纹

B.推下七节骨能温阳止泻

C.肾经穴由指尖向指根方向直推为补，称补肾经

D.天河水用食、中二指面自肘推向腕，称清开河水

E.用拇指面自腕推向肘，称退六腑

III. Reading Comprehension （35分）

Section A

Directions: For each blank in the following passage there are four words or phrases marked A, B, C and D. Fill in each blank with the word or phrase that best fits the context.

There was a man who played the piano in a small bar. There were not too many ___46___, but because he was a good piano player, some people ___47___ came in every night just to hear him play. But one night, a patron (老顾客) told him he didn’t want to hear him play but to sing a song.

The man said, “I have never done that before in public. I think I’m ___48___ at playing the piano.” But the customer ___49___. He told the waiter, “I’m ___50___ listening to the piano day after day. I want to hear something new and I want that guy to sing.”

The waiter ___51___ across the room, “Hey, buddy! If you want to get ___52___, sing a song. The patrons are asking you to sing!”

So in order no bring some money home that night, the piano player who had never sung in public did so for the very first time. And ___53___ had ever heard the song Mona Lisa sung before ___54___ that night by Nat King Cole, and it surprised all, including the ___55___ himself.

He had talent he was sitting on! He may have lived the rest of his life as a no-name piano player in a no-name bar, but ___56___ he had to sing, he went on to become one of the best-known entertainers in America.

You, too, have skills and ___57___. You may not feel as if your “talent” is particularly ___58___, but it may be better than you think! And with persistence, most skills can be ___59___. Besides, you may as well have no ability at all if you sit on whatever talent you possess. The ___60___ is not “What ability do I have that is useful?” It is rather “How will I use whatever ability I have?”

46.   A. waiters       B. players       C. singers       D. customers

47.   A. never         B. still     C. ever    D. only

48.   A. better  B. nicer   C. easier  D. sooner

49.   A. agreed       B. worried      C. insisted      D. charged

50.   A. familiar with     B. fond of      C. used to      D. tired of

51.   A. complained       B. shouted      C. explained   D. served

52.   A. changed     B. fired          C. paid    D. praised

53.   A. nobody      B. anybody     C. somebody   D. everybody

54.   A. since   B. after   C. until   D. when

55.   A. waiter B. singer C. patron D. owner

56.   A. unless B. although     C. because      D. if

57    A. advantages B. characters   C. abilities      D. principles

58.   A. different    B. surprising   C. famous       D. great

59.   A. improved   B. wasted       C. recognized        D. impressed

60    A. decision     B. difficulty    C. question     D. solution

含碳量90%的无烟煤4kg（假设其它成分均不含碳元素）完全燃烧，理论上可得到二氧化碳多少千克？

用数学变换方法求解振动问题的方法包括哪几种？有什么区别？