起重机制动器的基本功能是什么？

可以在本省、自治区、直辖市承担20万人口以下城市总体规划和各种专项规划的编制单位是( )。

A．甲级城市规划编制单位
B．乙级城市规划编制单位
C．丙级城市规划编制单位
D．甲、乙、丙级城市规划编制单位

25岁男性，发热、胸痛3天。查体：胸骨左缘第3～4肋间闻及摩擦音，心电图示各导联（除aVR导）ST段弓背向上型抬高，心肌酶谱正常。最可能的诊断是（）

A.急性心包炎

B.急性心肌梗死

C.急性病毒性心肌炎

D.感染性心内膜炎

E.肺栓塞

When I was six, Dad brought home a dog one day, who was called “Brownie”, my brothers and I all loved Brownie and did different things with her. One of us would walk her, another would feed her, and then there were baths, playing catch and many other games. Brownie, in return, loved each and every one of us. One thing that most touched my heart was that she would go to whoever was sick and just be with them. We always felt better when she was around.

One day, as I was getting her food, she chewed up(咬破) one of Dad’s shoes, which had to be thrown away in the end. I knew Dad would be mad and I had to let her know what she did was wrong. When I looked at her and said, “Bad girl.” She looked down at the ground and then went and hid. I saw a tear in her eyes.

Brownie turned out to be more than just our family pet. She went everywhere with us. People would stop and ask if they could pet her. Of course she’d let anyone pet her. She was just the most lovable dog. There were many times when we’d be out walking and a small child would come over and pull on her hair. She never barked (吠) or tried to get away. Funny thing is that she would smile. This frightened people because they thought she was showing her teeth. Far from the truth, she loved everyone.

Now many years have passed since Brownie died of old age. I still miss the days when she was with us.

小题1: What would Brownie do when someone was ill in the family?

A．Look at them sadly.

B．Keep them company.

C．Play games with them.

D．Touch them gently.小题2: We can infer from Paragraph 2 that Brownie ____.

A．would eat anything when hungry

B．felt sorry for her mistake

C．loved playing hide-and-seek

D．disliked the author’s dad小题3:Why does the author say that Brownie was more than just a family pet?

A．She was treated as a member of the family.

B．She played games with anyone she liked.

C．She was loved by everybody she met.

D．She went everywhere with the family.小题4: Some people got frightened by Brownie when she ____.

A．smiled

B．barked

C．rushed to them

D．tried to be funny小题5: Which of the following best describes Brownie?

A．Shy.

B．Polite.

C．Brave.

D．Caring.

下列叙述中，正确的是( )。

A．Reader是一个读取字符文件的接口

B．Reader是一个读取数据文件的抽象类

C．Reader是一个读取字符文件的抽象类

D．Reader是一个读取字节文件的一般类

预防接种属于（）

A.零级预防

B.一级预防

C.二级预防

D.三级预防

E.四级预防