一病人时刻念叨："无穷大有多大？圆周率为什么是无限不循环小数？"为此苦苦求索，十分苦

再生障碍性贫血 （）

A.中性粒细胞碱性磷酸酶染色积分增高

B.过氧化物酶染色强阳性反应

C.糖原染色强阳性反应

D.非特异性酯酶染色强阳性反应

E.骨髓铁染色细胞内外铁显著增多，易见环形铁粒幼细胞

碳纳米管是继足球烯（C₆₀）以后发现的又一种碳单质．以下有关碳纳米管与足球烯（C₆₀）的说法错误的是（　　）

A．它们的物理性质有较大差异

B．在常温下它们的化学性质都稳定

C．它们是不同的碳单质

D．它们分别完全燃烧后生成物不同

Climbers at the top of Mount Everest, the world’s highest peak, will now be able to make video calls and surf the Internet on their mobile phones, a Nepalese (尼泊尔的) telecom group claims.

Ncell, a branch company of Swedish phone giant TeliaSonera, said on Thursday it had set up a high-speed third-generation (3G) phone base station at an altitude of 5,200 metres in the Everest region.

“Today we made the world’s highest video call from Mount Everest base camp successfully. The coverage (覆盖范围) of the network will reach up to the peak of Mount Everest,” Ncell Nepal chief Pasi Koistinen told reporters in Kathmandu.

The installation (安装) will also help tens of thousands of tourists and hikers who visit the world’s highest mountain every year.

Climbers who reached its 8,848-metre peak previously depended on expensive satellite phones and a voice-only network set up by China Mobile in 2007 on the Chinese side of the mountain.

“This is a great milestone for mobile communications as the 3G high speed Internet will bring faster, more affordable telecommunication services from the world’s tallest mountain,” said Lars Nyberg, chief executive of TeliaSonera, which owns 80 percent of Ncell.

The 3G services will be fast enough to make video calls and use the Internet, said the company, which also claimed the world’s lowest 3G base at 1,400 metres below sea level in a mine in Europe.

Despite the installation in Mount Everest, telecom services cover less than one-third of the 28 million people of Nepal, one of the poorest countries in the world.

TeliaSonera said it planned to invest $ 100 million in the next year to ensure that mobile coverage increases to more than 90 per cent of the Himalayan nation’s population.

The 3G network on Mount Everest puts TeliaSonera ahead of state-controlled Nepal Telecom, Indian-owned United Telecom and China Mobile.

Around 3,000 people have climbed to the Everest summit since Edmund Hillary and Tenzing Norgay became the first people to conquer the peak in 1953.

小题1:Who are most likely to benefit from the 3G services at Mount Everest?

A．The telecom firm.

B．The local residents.

C．Travelers to Nepal.

D．Mount Everest explorers.小题2:According to Lars Nyberg, the 3G services they provide __________.

A．are fast and convenient

B．are a little expensive

C．can make voice-only calls

D．offer free emailing小题3:What do we know about TeliaSonera?

A．80 percent of it is owned by Ncell

B．It belongs to Nepal Telecom.

C．It is in the charge of Pasi Koistinen

D．It provides services for Pasi Koistinen.小题4:What is the best title of the text?

A．Telecommunication in Nepal

B．3G services reach Mt. Everest summit

C．TeliaSonera takes lead in communication

D．Good news for hikers and climbers

下列药品属于药品类易制毒化学品的是（）

A.麦角酸

B.布桂嗪

C.哌唑嗪

D.氯胺酮

以下癌前病变除外（）

A.胃溃疡伴不典型增生

B.皮肤 * * 状瘤

C.黏膜白斑

D.炎性息肉

E.萎缩性胃炎