临床上将妊娠全过程分为3个时期A．妊娠12周以前称为早期妊娠 B．妊娠28周以前称为

三边长分别为2n²+2n，2n+1，2n²+2n+1（n＞0）的三角形是不是直角三角形？为什么？

请选出下列选项中衔接排序正确的一项（   ）（3分）

下列句子是捐献肝肾的12岁女孩何玥的颁奖词，句序被打乱，正确的排列顺序是：     

①．你捐出自己，如同花朵从枝头散落，留得满地清香。

②．正是花样年华，你却悄然离开。

③．你来过，你不曾离开，你用平凡生命最后的闪光，把人间照亮。

④．命运如此残酷，你却像天使一样飞翔。

A．②①③④

B．①③④②

C．②①④③

D．④②③①

男性，60岁，溃疡穿孔单纯修补术后7天，体温38℃，右上腹痛，肝区叩痛，右肺下野呼吸音弱，X线示右膈升高，可能是并发

A．右下肺炎

B．急性胆囊炎

C．再穿孔

D．右膈下脓肿

A few degrees can make a big difference when it comes to food storage. Foods can go bad if they get too warm. But for many of the world’s poor, finding a good way to keep food cool is difficult. Refrigerators are costly and they need electricity.

Yet spoiled food not only creates health risks but also economic losses. Farmers lose money when they have to throw away products that they cannot sell quickly.

But in nineteen ninety-five a teacher in northern Nigeria named Mohammed Bah Abba found a solution. He developed the “Pot-in-Pot Preservation/Cooling System.” It uses two round containers made of clay. A smaller pot is placed inside a larger one. The space between the two pots is filled with wet sand. The inner pot can be filled with fruit, vegetables or drinks. A wet cloth covers the whole cooling system.

Food stored in the smaller pot is kept from spoiling through a simple evaporation(蒸发) process. Water in the sand between the two pots evaporates through the surface of the larger pot, where drier outside air is moving.

The evaporation process creates a drop in temperature of several degrees. This cools the inner pot and helps keep food safe from harmful bacteria. Some foods can be kept fresh this way for several weeks.

People throughout Nigeria began using the invention. And it became popular with farmers in other African countries. Mohammed Bah Abba personally financed the first five thousand pot-in-pot systems for his own community and five villages nearby.

In two thousand, the Rolex Watch Company of Switzerland honored him with the Rolex Award for Enterprise. This award recognizes people trying to develop projects aimed at improving human knowledge and well-being. A committee considers projects in science and medicine, technology, exploration and discovery, the environment and cultural history. Winners receive financial assistance to help develop and extend their projects.

小题1:Which is the best title of the passage?

A．A Few Degrees can Make a Big Difference for Storage

B． A Cool Way to Keep Food from Spoiling

C． Spoiled Food Creates Health Risks and Economic Losses

D． The Evaporation Process Creates a Drop in Temperature小题2:What does the third paragraph mainly talk about?

A．the structure of the invention

B．the usage of the invention

C．the cost of the invention

D．the inspiration of the invention小题3:What is it that essentially keeps the food in the container from spoiling?

A．the wet cloth covering the cooling system.

B．the moving drier air outside the container

C．the wet sand between the containers

D．a drop in temperature by evaporation小题4:According to the passage, where can we possibly see the invention?

A．rich and advanced families

B．scientific experiment laboratory

C．poor and underdeveloped area

D．supermarket needing to store goods小题5:We can know from the passage that Mohammed Bah Abba ____________.

A．invented the controversial cooling system

B．financed the systems in all communities

C．received financial assistance for his invention

D．invented more complicated cooling system later

患儿男，5岁。低热伴头痛1.5个月入院。查体：精神差，右眼外展受限，颈抵抗阳性，克氏征、布氏征阳性。腰穿：脑脊液压力210mmH₂O，蛋白1.5g/L，糖1.4mmol/L，氯化物93mmol/L。

该患儿最可能发生（）

A.结核性脑膜炎，早期

B.结核性脑膜炎，中期

C.结核性脑膜炎，晚期

D.隐球菌脑膜炎

E.脑脓肿