问题 单项选择题

下列哪项因素与决定女性乳癌患者预后关系最密切

A.原发肿瘤大小
B.肿瘤所处的象限
C.手术范围
D.腋窝有无淋巴结转移及数量
E.肿瘤激素受体状况

答案

参考答案:D

解析:[解释] 瘤体越小,预后越好。肿瘤所处的象限,外侧比内侧稍佳,但无统计学意义。手术范围大小与预后无平行关系。肿瘤激素受体测定一般认为阳性者较阴性者为好,因阳性者内分泌治疗效果较好。而腋窝淋巴结有无转移及数量则被认为是衡量预后好坏的重要指标,淋巴结阴性者预后好.阳性者及数目越多预后越差。

问答题 简答题
阅读理解

阅读理解。

     The Great Wall of China is one of Beijing's biggest draws for tourists; despite its fame and ubiquity

in postcards across the world, it rarely fails to attract tourists at the first proper sight.

     Yet the authorities open only certain sections of the wall as fit for viewing, and few get to visit the

unauthorized sections. Fewer still are aware of the existence of at least one part of the Wall that remains

in almost original condition, nearly 1, 500 years after construction of legendary fortification began. But

there's a good reason for this-it's underwater.

     American journalist Steven Schwankert has been diving since age 10. It was through his setting-up

of a diving school that Schwankert came to explore some of lesser-known areas of China's Iakes-and

discovered the underwater Wall under a reservoir.

     "The most fascinating piece of diving I ever did in China must be the Great Wall. I managed to find

out about it via the Internet It wasn't difficult to get to Pan Jiakou in Hebei Province, near the East Qing

Tomb about 4 hours' drive from Beijing. Why do I want to dive the Great Wall? Why do people want to

walk on the Great Wall? It's the same answer."

     There are, however, advantages of visiting the Great Wall in a diving suit over being on foot. The

water acts as a preservative by preventing the kind of mass tourism that has brought trouble on other

parts of the Wall. "Unlike the people who walk in the Wall, we as divers never need to actually touch it.

I've dived twice there, the last time in July. I found that the water then was much deeper than it was

before-13 meters deep.." When he first dived, parts of the Wall were visible above the surface. Now

even the guard tower is completely submerged. "It's better that the Wall is deep under water, as there

are lots of boats coming in and out around that area. Their wave action could potentially damage the

brickwork. So, the deeper, the better."

1. Steven Schwankert is most interested in _____.[ ]

A. collecting photos of the Wall

B. walking along on the Wall

C. diving the underwater Wall

D. visiting some famous lakes

2. What does the underlined word "submerged" in Paragraph 5 most probably mean? [ ]

A. Damaged by water.

B. Washed by water.

C. Preserved by water.

D. Covered by water.

3. What is the topic discussed in the last paragraph?[ ]

A. Advantages of walking on the Great Wall.

B. Advantages of visiting the underwater Wall.

C. The reasons why the Wall is deep under water.

D. The reasons why the underwater Wall is protected.

4. What can we infer from the text? [ ]

A. The underwater Wall will sink deeper year by year.

B. Diving the Wall is popular with divers all over the world.

C. DiVing is a good way to visit the Wall without causing much damage.

D. More and more tourists will come to visit the underwater Wall in China.