自然界中微观客体一般指空间尺度小于10-6厘米，质量小于10-15克的粒子，包括分子、原子、原子核、基本粒子等物质层次。微观粒子和场在极其微小的空间范围内的各种现象，一般称为微观现象。微观粒子和微观现象总称微观世界，微观世界的运动符合量子力学和量子电动力学所反映的规律。最能准确复述这段话的主要意思的是( )。

A．什么是微观客体

B．微观客体由哪些组成

C．什么是微观现象

D．什么是微观世界

阅读理解，选择正确答案。

      There is a new park near my room. It's a fine day today. My family are in the park now. On my left, there

is a cafe. On my right, there is a big lake. There are many flowers and trees near the lake. There's a small hill

behind the lake. Near the lake, there is a sign. It says, " Don't swim in the lake! " There is a playground in the

middle of the park. There are some small shops near the gate. The park is beautiful. We like it very much.

1. The park near my room is _____________.

A. new and clean

B. new and beautiful

C. old and beautiful

2. Is there a fruit stand (水果摊) in the park?

A. Yes, there is.

B. No, there is.

C. No, there isn't.

3. People can't _____________ in the lake.

A. swim

B. boat

C. play

4. The shops in the park are not _____________.

A. small

B. big

C. good

5. Do they like the park?

A. Yes, they do.

B. Yes, we do.

C. No, we do.