一个玉米雄穗花粉量最大是在散粉的（）。A.第1-2天 B.第2-3天 C.第3-4天

（）属于我国个人所得税税率形式。

A.5%～45%超额累进税率

B.5%～45%全额累进税率

C.5%～35%超额累进税率

D.5%～35%全额累进税率

E.20%比例税率

超过有效期的药品是（）

A．新药

B．以假药论处

C．以劣药论处

D．医疗机构配制的制剂

E．麻醉药品

阅读理解

     If this 13year old American boy succeeds in climbing Mount Everest,he has modest ambitions-pick a

small piece of rock from the top as a memento (纪念品) and wear it in a necklace.

     "It is something for myself to say 'this is a rock from the top',"Jordan Romero from California,told

reporters in Kathmandu.He left for the mountain on Sunday.

     If he succeeds,Romero will become the youngest climber to climb the 8,850 meters Everest Summit.

Currently a 16yearold Nepali boy,Temba Tsheri Sherpa,holds the record of being the world's youngest

climber of Mount Everest.

     But Romero,sitting over lunch with his climbing father and stepmother in Kathmandu's tourist district

of   Thamel,said he was not after setting climbing records.

     Romero said Mount Qomolangma,that runs across NepalChina border,was part of his goal to climb

the highest mountains on all seven continents.

     "It is just a goal," he said confidently."If I don't succeed I am okay.I will try again."

     Romero has already climbed Mount Kilimanjaro in Africa and Mount McKinley in Alaska among

others.

     Romero's father Paul said the boy was ready to take on the climb and understood the risk of climbing

the giant mountain.

     "I know it requires a lot of patience.I will remain patient.I want to stay safe and make right choice,"

Romero said of his climb using the northeast ridge (山脊) route on the Chinese side of the mountain.

     Over 4,000 climbers have reached the top of Mount Qomolangma since it was first climbed by New

Zealander Sir Edmund Hillary and Nepal's Tenzing Norgay Sherpa in 1953.Romero said he wanted to

climb the highest mountains in all 50 states in the US next."It does not need to be after Qomolangma and

could be in between."

1. According to the passage,at present________keeps the record of being the world's youngest

    climber of Mount Everest.

A. Jordan Romero  

B. Temba Tsheri Sherpa

C. Tenzing Norgay Sherpa  

D. Sir Edmund Hillary

2. From the passage we can learn that Romero's goal is________.

A. to break the record of the youngest climber to climb Everest Summit

B. to pick a small piece of rock from the top of Everest Summit

C. to climb the highest mountains on all seven continents

D. to climb the highest mountains in all 50 states in the US

3. We can infer from the passage that________.

A. Romero has made a promise that he must climb up the top of Mount Qomolangma

B. the highest mountain in America is Mount Kilimanjaro

C. Sir Edmund Hillary and Tenzing Norgay Sherpa come from different countries

D. there is no risk climbing Mount Qomolangma

4. The following statements are true EXCEPT________.

A. Romero is to use the northwest ridge route on the Chinese side of the mountain

B. Romero has his patience and understands the risk of climbing the giant mountain

C. Romero has made a safe climbing plan

D. Romero is fond of climbing

女性，48岁。发作性剑突下及右上腹绞痛3天，伴有寒战，半年前过类似发作史。查体：体温39℃，脉搏110次/分，血压140/85mmHg，血常规检查：WBC12×109/L，N80%，神志清楚，皮肤、巩膜轻度黄染，右肋缘下扪及肿大的胆囊、触痛。

该病人最可能的诊断是（）

A.细菌性肝脓肿 

B.肝外胆管结石并胆管炎 

C.急性化脓性胆囊炎 

D.肝内胆管结石并胆管炎 

E.急性梗阻性化脓性胆管炎

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