基金预算支出与专用基金支出的共同点是：（）。

Fill in the blanks. 组词填空。

1. please speak               (l, s, o, y, l, w).   

2. A duck can               (m, s, w, i).   

3.               (e, Y, l, o, l, w) is wait.   

4. The weather is warm and               (a, r, y, n, i).

与龈下牙石形成有关（）。
主要为革兰阴性厌氧菌构成的菌斑（）。
被认为是牙周炎“进展前沿”的菌斑（）。

A.龈上菌斑

B.附着型龈下菌斑

C.非附着型龈下菌斑

D.陈旧的龈上菌斑

E.窝沟处龈上菌斑

B

We once had a poster competition in our fifth grade art class.

“You could win prizes，’’our teacher told US as she wrote the poster information on the blackboard. She passed out sheets of construction paper while continuing，“The first prize is ten dollars. You just have to make sure that the words on the blackboard appear somewhere on your poster. ”

We studied the board critically. Some of US looked with one eye and held up certain colors against the blackboard，rocking the sheets to the fight or left while we conjured up our designs. Others twisted their hair around their fingers or chewed their erasers while deep in thought. We had plans for that ten—dollar grand prize，each and every one of US. I'm going to spend mine on candies，one hopeful would announce，while another practiced looking serious，wise and rich.

Everyone in the class made a poster. Some of us used parts of those fancy paper napkins， while others used nothing but colored construction paper. Some of US used big designs，and some of us preferred to gather our art tidily down in one comer of our poster and let the space draw the viewer's attention to it. Some of US would wander past the good students’ desks and then return to our own projects with a growing sense of hopelessness. It was yet another grown-up trick of the soil they seemed especially fond of。making all of US believe we had a fair chance，and then always—always—rewarding the same old winners.

I believe I drew a sailboat，but I can’t say that with any certainty. I made it. I admired it. I determined it to be the very best of all of the posters I had seen，and then I turned it in.

Minutes passed.

No one came along to give me the grand prize，and then someone distracted me，and I probably never would have thought about that poster again.

I was still sitting at my desk，thinking，What poster? When the teacher gave me an envelope with a ten-dollar bill in it and everyone in the class applauded for me.

51.. What was the teacher's requirement for the poster?

A. It must appear in time.

B. It must be done in class.

C. It must be done on a construction sheet.

D. It must include the words on the blackboard.

52. The underlined phrase in paragraph 3 most probably means _____________.

A. formed an idea for        B. made an outline for

C. made some space for      D. chose some colors for

53. After the teacher’s words，all the students in the class _________.

A. 1ooked very serious                 B. thought they would be rich

C. began to think about their designs       D. began to play games

54. After seeing the good students’ designs，some students _________.

A. 1oved their own designs more

B. thought they had a fair chance

C. put their own designs in a comer

D. thought they would not win the prize

55. We can infer from the passage that the author ______________.

A. enjoyed grown-up tricks very much

B. 1oved poster competitions very much

C. felt surprised to win the competition

D. became wise and rich after the competition

有一辆车长为3896mm的汽车正在行驶，当t=0时开始刹车（位置如图a所示），在t=1s时汽车停止（位置如图b所示）。若汽车的运动可看成匀减速直线运动，则根据题中提供的信息，可以估算出的物理量是

A．1s内阻力对汽车所做的功

B．刹车时汽车受到的阻力

C．开始刹车时汽车的动能

D．刹车时汽车的加速度

被称为“凝固的音乐”的艺术是指（）。

A.绘画

B.雕塑

C.建筑

D.摄影