下列行为中属于先天性行为的是（ ） A．蜘蛛结网 B．“红灯停，绿灯行” C．鹦

下图是植物细胞和动物细胞的结构示意图，据图回答问题：

(1)属于植物细胞的是_________图，你判断的依据是__________(任写一种)；

(2)细胞通过________（填字母）与外界进行物质交换，细胞生命活动的控制中心是（填字母）____________，细胞的许多生命活动在__________（填字母）中进行，由___________，分解有机物并释放能量，供细胞生命活动利用，生物所需的营养物质和能量都来自植物的_________通过光合作用制造的有机物而获得。

(3)西瓜之所以甘甜可口，主要是____________（填字母）中含有大量细胞液。

《城市房地产管理法》规定：房地产转让，是指房地产权利人通过( )等方式将其房地产转移给他人的行为。

A．买卖

B．赠与

C．其他合法方式

D．以上三项都正确

Last Friday, after doing all the family shopping in town I wanted a rest before catching the train, so I bought a newspaper and some chocolate and went into the station coffee shop. It was a cheap self-service place with long table to keep a place and went to get a cup of coffee.

When I came back with the coffee, there was someone in the next seat. It was one of those wild-looking boys, with dark glasses and old clothes, and his hair was colored bright red at the front. What did surprise me was that he’d started to eat my chocolate.

I was rather uneasy about him, but I didn’t want to make more trouble. I just looked down at the front page of the newspaper, tasted my coffee and took a bit of chocolate. The boy looked at me closely. Then he took a second piece of chocolate. I could hardly believe it. Still I didn’t say anything to him. When he took a third piece, I felt angrier. I thought, well, I shall have the last piece. “And I got it.”

The boy gave me a strange look, and then stood up. As he left he shouted out, “There is something wrong with the woman,” Everybody looked at me, but it was worse then I finished my coffee and got ready to leave. My face turned red when I knew I’d made a mistake. I wasn’t my chocolate that I had eaten. There was mine, just under my newspaper.

小题1:In which order did the writer do the following things?

a. Went into a coffee shop.     b. Got a cup of coffee,

c. Started to eat some chocolate.   d. Did some shopping.

e. Found a seat in the shop.    f. Bought some chocolate.

A．a, e, f, b, c, d

B．a, d, f, b, e, c

C．d, f, a, e, b, c

D．d, a, f, c, b, e小题2:The writer went into the station coffee shop to______.

A．buy a newspaper

B．meet a boy with dark glasses

C．put her heavy bag

D．take a short rest小题3:When the writer came back to the table, she was surprised because______.

A．her chocolate had been eaten up

B．the boy was eating her chocolate

C．there was a boy sitting next to her

D．what the boy did seemed quite rude小题4:How do you think the writer felt at last?

A．She felt disappointed

B．She felt ashamed

C．She became angrier.

D．She thought it very funny.

在一道工序中，（）安装。

A.只能有一次

B.不可能有多次

C.可以有一次或多次

D.只能有多次

牙髓塑化治疗时，拔髓的要求为（）

A.尽量去净根髓

B.不拔除根髓

C.保留根尖1/2根髓

D.保留根尖1/3根髓

E.要穿透根尖孔