离心式水泵的中心至水泵出口高度称为水泵总扬程。

It was Mary’s birthday．Her uncle wrote a letter and told her he would like to send her some chickens．She was very happy because she liked eggs and chicken．”I can keep the chickens for their eggs or eat them，”she thought．

When the chickens arrived the next day, they were all in a box．Mary took the box off the truck and began to carry it into her garden，but the box of chickens was so heavy that she dropped（落下）it．The chickens all ran out．They ran here and there．Mary spent hours in trying to find them．

A few hours later her uncle came．He asked．”Did the chickens arrive safely?” ”Yes，but I dropped the box．The chickens ran everywhere．It took me the whole morning to look for them，”Mary said．

“Did you find them all?” asked her uncle．”I hope so，”Mary answered，”But l only caught（抓住）eleven of them” “That’s very interesting．I only sent you six．”her uncle laughed．

小题1:Mary got a letter from her _____．

A．aunt

B．uncle

C．grandfather

D．friend小题2:When she got the letter, Mary was ______．

A．happy

B．sad

C．tired

D．unhappy小题3:Why did Mary drop the box?

A．Because she didn’t like the present．

B．Because the box was too heavy.

C．Because she wanted to 1et the chickens go out．

D．Because she couldn’t wait to look at her present．小题4:It took Mary _____ to find the chickens．

A．an hour

B．two hours

C．three hours

D．the whole morning小题5:Did Mary know how many chickens her uncle sent her?

A．Yes．she did．

B．Her uncle knew．

C．Maybe she knew．

D．No，she didn’t．

阅读材料：（18分）

材料1：仁宗之世，契丹增币，夏国增赐，养兵西陲，费累百万。

——《宋史》

材料2：陛下(宋神宗)即位五年，更张改造者数千百事，……其议论最多者，五事也：一曰和戎，二曰青苗，三曰免役(也称募役)，四曰保甲，五曰市易……免役之法成，则农时不夺，而民力均矣；……市易之法成，则货贿通流，而国用饶矣。

——王安石《临川先生文集》

材料3：(王安石)不忍贫民而深疾富民，志欲破富民以惠贫民。……及其得志，专以此为事，设青苗法，以夺富民之利。民无贫富，两税之外，皆重出息十二，吏缘为 * * ，至倍息，公私皆病矣。 ——苏辙《栾城三集》

材料4：(司马光)请更张新法，曰：“……王安石不达政体，专用私见，变乱旧章，误先帝任使，遂至民多失业，闾里怨嗟。……敛免役钱，宽富而困贫，以养浮浪之人，使农民失业，穷愁无告。”

——《续资治通鉴长编》

请回答：

(1)北宋“积贫”原因，除材料1中所涉及的以外，还有重要的一项是什么？王安石变法针对“积贫”采取的措施，除材料2中提及的以外，还有哪两“事”？依据材料2，概括王安石变法取得的成效。（6分）

(2)依据材料3 、4，指出王安石“新法”遭到废除的原因。（6分）

(3)有关王安石变法的评价，目前史学界主要有两种意见。一是肯定说，认为王安石变法一定程度上扭转了北宋积贫积弱的局面；一是否定说，认为王安石变法是一场脱离实际的变法运动。请选择其中一种意见评述。（6分）

独生花相

治疗高钾血症采取降低血清钾浓度的方法不包括（）

A.10%葡萄糖酸钙

B.5%碳酸氢钠

C.阳离子交换树脂

D.10%葡萄糖溶液加胰岛素

E.透析疗法

在耐力运动中，主要的供能物质是（）。

A.蛋白质

B.脂肪

C.碳水化合物

D.矿物质

E.维生素