当儿童两眼向前平视时，两眼的黑眼珠位置不匀称，即称为（）。

One day, there was a blind man called John sitting on the bench with a hat by his feet and a sign that read, "I am blind. Please help me.”

A creative publicist(广告员)named Tom was walking by the blind man and stopped to see that the man only had a few coins in his hat. He put a few of his own corns in the hat. Without asking for permission, took the sign, turned it around and wrote a new message. Then he put the sign by the feet of the blind man, and left.

Later that afternoon the publicist returned to the blind man and noticed that his hat was almost full of bills and coins. The blind man recognized(识别)his footsteps and asked if it was he who had changed his sign. He also wanted to know what the man wrote on it.

The publicist said, "I just wrote the message a little differently.” He smiled and went on his way.

The new sign read, "Spring has come, but I can't see anything.”

小题1:What's the blind man's name?

A．Tom.

B．John.

C．Tony.

D．Sorry, I don't know.小题2:Who wrote a new message?

A．The blind man.

B．The teacher.

C．The publicist.

D．The farmer.小题3:How did the blind man recognize the publicist?

A．By his sign.

B．By his footsteps.

C．By his voice.

D．By his corns.小题4:When did the story happen?

A．In spring.

B．In summer.

C．In autumn.

D．In winter.小题5:What can we learn from the passage?

A．Publicists are always friendly and helpful.

B．We can get more money by changing a sign.

C．The blind man is very stupid, so he has little money.

D．The power (力量) of language is great.

I called Hannah three times yesterday evening, but I couldn’t get through, her brother _______on the phone all the time.

A．was talking

B．has been talking

C．has talked

D．talked

已知溴乙烷跟氰化钠反应后再水解可以得到丙酸：CH₃CH₂BrCH₃CH₂CNCH₃CH₂COOH 产物分子比原化合物分子多了一个碳原子，增长了碳链。请根据以下框图回答问题

F分子中含有8个原子组成的环状结构。

（1）写出H的分子式________________。

（2）在A-H中能和NaOH溶液反应的物质是（不包括物质B）________________。

（3）G的结构简式为________________。

（4）B生成D的化学方程式为：________________。

（5）D与E反应生成F的化学方程式为：________________。

资本主义法律的基本特征主要表现为（）

A.与资本主义私有制相适应的私有财产神圣不可侵犯原则

B.与资本主义市场经济相适应的契约自由原则

C.与则本主义民主政治相适应的法律面前人人平等原则

D.与资产阶级人道主义相适应的 * * 保障原则

有关HIV感染后的描述，正确的是（）

A.HIV感染人体后能产生抗体，但不能产生中和抗体

B.HIV感染人体后能产生抗体，但中和抗体少，且抗病毒作用弱

C.在血清中可以同时存在抗体与病毒

D.有抗体的血清仍具有传染性

E.感染HIV后，血清中即可检测出HIV抗体