企业内道路应保持路面平整、路基（）、边坡整齐、排水良好，并有良好的（）设施。

阅读短文，选择合适的答案。

     It's Sports Day today. The students are all in the playground. Some of them are having matches(比赛).

Some of them are watching. Look, Helen and Yang Ling are running. Helen is running faster than Yang

Ling.  Liu Tao and David are jumping. Liu Tao jumps higher than some of the boys in his class, but David

jumps higher than him. Mike and Tom are doing the long jump now. Who jumps farther, Mike or Tom? 

Oh, Mike is jumping two centimeres farther than Tom. They look very happy.

1. It's _______ today.

A. Teachers' Day        

B. Sports Day      

C. Children's Day

2. The students _______ are having the matches.

A. in the sports hall

B. in the classroom

C. in the playground

3. Liu Tao jumps _______ than David.

A. lower          

B. higher        

C. farther

4. _______ doesn't jumps as far as Mike.

A. Tom                

B. Yang Ling      

C. Helen

5. The students are all very _______.     

A. tired          

B. happy        

C. hungry

阅读理解，选择正确的答案，将序号填在题前括号里。

Dear Zhang Peng, 

      Please come to my twelfth birthday party at 6: 30 p. m. on Sunday. Now let me tell you how to come:

1. Start from the bus stop near your home.

2. Take the No. 15 bus.

3. Get off at the cinema.

4. Walk east for five minutes.

5. My home is next to the red building.

6. Look for me near the door.

　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　Yours,

　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　Wu Yifan

1. Zhang Peng is one year older than Wu Yifan. How old is Zhang Peng?[ ]

A. 11

B. 12

C. 13

2. Which bus should Zhang Peng take?[ ]

A. No. 15 bus.

B. No. 50 bus.

C. No. 5 bus.

3. Where should Zhang Peng get off?[ ]

A. At the zoo.

B. At the cinema.

C. At the library.

4. What colour is the building?[ ]

A. White

B. Blue

C. Red

5. Wu Yifan's home is ____________ the building.[ ]

A. next to

B. north of

C. south of

生物学知识中有很多相关联的概念，我们可以用图来形象地表示这些概念间的关系，下列各项符合下图所示关系的是

A．①抗体②载体③蛋白质

B．①群落②无机环境③生态系统

C．①神经元胞体②神经元树突③神经元轴突

D．①细胞膜②细胞质③细胞核

简述我国《合同法》规定的合同解释标准。

吉芬商品是以19世纪英国经济学家吉芬的名字命名的，吉芬商品的需求曲线是( )。

A．向左上方倾斜
B．向右上方倾斜
C．向左下方倾斜
D．向右下方倾斜