阅读短文，根据短文内容，选择恰当的答案回答问题。

Dear Mummy,

      How are you? I am fine at school. Tomorrow is National Day. We don't have to go to school. I am going

to take a trip with my friends in the morning. I am going to Zhongshan Park. I am going there by bike. It's near

our school. In the afternoon, I am going to the bookstore and buy some new books. In the evening, I am going

to watch TV. What are you going to do tomorrow? Can you tell me?

　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　Your son,

　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　Tom

1. What's the date tomorrow?

A. Oct. 1st

B. Nov. 1st

2. Where is Tom going on National Day morning?

A. The bookstore.

B. Zhongshan Park

3. How is Tom going to the park?

A. Ride a bike.

B. On foot

4. Is the park far from Tom's school?

A. Yes, it is.

B. No, it isn't.

5. What is Tom going to do in the bookstore?

A. Buy some new books.

B. Take a trip.

图中甲、乙、丙分别代表热带雨林生态系统中的三大功能类群。下列说法正确的是

A．丙处于两个营养级，是杂食性动物

B．图中表示出了两个食物链

C．图中的箭头可以表示物质和能量的传递方向

D．乙一丙的能量传递效率为10%～20％