在Windows中，"回收站"是（　　）。A．内存中的一块区域 B．软盘上的一块区域

车辆在下长坡时，要减档行驶，充分利用发动机的制动作用。

以下有关姓氏的读音错误的有（）。

A、卜bú

B、禹yǔ

C、臧zàng

D、樊fán

     In 1997, a group of twenty British women made history. Working in five teams with four women in

each team, they walked to the North Pole. Apart from one experienced female guide, the other women

were all ordinary people who had never done anything like this in their lives before. They managed to

survive in an environment which had defeated several very experienced men during the same time period.

     The women set off as soon as they were ready. Once on the ice, each woman had to ski along while

dragging a sledge (雪橇) weighing over 50 kilos. This would not have been too bad on a smooth surface, but for long distances, the Arctic ice is pushed up into huge piles two or three metres high, and the sledges had to be pulled up one side and carefully let down the other so that they didn’t become damaged. The

temperature was always below the freezing point and sometimes strong winds made walking while pulling

so much weight almost impossible. It was also very difficult for them to put up their tents when they

stopped each night.

     In such conditions, the women were making good progress if they covered fourteen or fifteen

kilometres a day. But there was another problem. Part of the journey was across a frozen sea with moving water underneath the ice and at some points the team would drift (漂流) back more than five kilometres

during the night. That meant that after walking in these very severe conditions for ten hours on one day,

they had to spend part of the next day covering the same ground again. Furthermore, each day it took

three hours from waking up to setting off and another three hours every evening to set up the camp and

prepare the evening meal.

     So, how did they manage to succeed? They realized that they were part of a team. If any one of them

didn't pull her sledge or get her job done, she would endanger the success of the whole expedition (探险). Any form of selfishness could result in the efforts of everyone else being completely wasted, so personal

feelings had to be put to one side. At the end of their journey, the women agreed that it was mental effort

far more than physical fitness that got them to the North Pole.

1. What was so extraordinary about the expedition?

A. There was no one to lead it.

B. The women did not have any men with them.

C. It was a new experience for most of the women.

D. The women had not met one another before.

2. On the expedition, the women had to be careful to avoid ________.

A. falling over on the ice          

B. being left behind

C. damaging the sledges              

D. getting too cold at night

3. It was difficult for the women to cover 15 kilometres a day because ________.

A. they got too tired                

B. the ice was moving

C. they kept getting lost            

D. the temperatures were too low

下列关于土地登记的说法中，错误的是( )。

A．土地权利人可以随意改变土地用途

B．同一个登记区内的土地登记资料，只能由一个土地登汜机构建档保存

C．土地登记工作中要逐步改变部分地区存在的按土地权利归属，由不同级别的国土资源管理部门分级登记的现象

D．各地在具体的土地登记实践中，应当坚持属地管辖的原则，涉及土地资产处置时，可将土地资产处置权与土地登记权分离，土地资产处置权按照资产隶属关系确定

转场航空器超过预定时间（）仍未起飞又未申请延期的，其原飞行申请失效。

A、半小时

B、1小时

C、2小时