2.52的2倍加上9.6除4.8的商，和是多少？算式是（ ） A．2.52×2+4

命题“若x²＜4，则-2＜x＜2”的逆否命题是（　　）

A．若x²≥4，则x≥2或x≤-2

B．若-2＜x＜2，则x²＜4

C．若x＞2或x＜-2，则x²＞4

D．若x≥2，或x≤-2，则x²≥4

体内有病原体生长，繁殖并能排出体外的人和动物被称为（）。

A．媒介物

B．宿主

C．易感者

D．传染源

E．感染者

货垛的基础是( )。

A．垛形

B．垛基

C．货垛参数

D．堆码方式

“Can I see my baby?” asked the happy new mother. The bundle (a collection of things wrapped or boxed together) was placed in her arms and when she moved the fold of cloth to look upon his tiny face, she gasped -- the baby had been born without ears. Time, however, proved that the baby’s hearing was perfect except his appearance.

One day when he rushed home from school and threw himself into his mother’s arms, he cried out bitterly, “A boy, a big boy… called me -- a f... freak.” She sighed, knowing that his life was to be endless of heartbreaks.

He grew up, handsome for his misfortune. A favorite with his fellow students, he might have been class president, but for that. He developed a gift for literature and music.

The boy’s father had a talk with the family doctor. Could nothing be done? “I believe we could graft (移植) on a pair of outer ears, if they could be donated (捐献) ,” the doctor decided. So the search began for a person who would make such a sacrifice for a young man. Two years went by. Then, “You’re going to the hospital, son. Mother and I have someone who will donate the ears you need. But it’s a secret.” said the father.

The operation was a brilliant success. His talents blossomed into genius. School and college became a series of successes. Later he married and entered the diplomatic (外交) service. “But I must know!” he urged his father. “Who gave so much for me? I could never do enough for him.”

“I do not believe you could,” said the father，“but the agreement was that you are not to know…not yet.” The years kept the secret, but the day did come... one of the darkest days that ever passed through a son. He stood with his father over his mother’s casket (棺材). Slowly and tenderly, the father stretched forth a hand and raised the thick, reddish-brown hair to let out the secret.

小题1:The story is mainly about _______.

A．how a boy had new ears through an operation

B．what a devoted parent privately did for the child

C．how a disabled boy turned into a useful person

D．why a donator made a sacrifice to a bright boy小题2:From the first paragraph we know that the mother _______.

A．was determined to donate her ears to perfect her son

B．kept her husband unknown about the baby’s situation

C．felt shocked and disappointed to see her new baby

D．complained of her bad luck to have a disabled child小题3:The underlined word “freak” in Paragraph 2 is the closest in meaning to “_______”.

A．slow-acting person

B．funny-looking child

C．badly-behaved student

D．strangely-shaped creature小题4:What can be inferred from the passage?

A．The agreement was between the donator and the family.

B．The boy was so popular that he was made class president.

C．Finally the boy came to know who the donator was.

D．The mother donated her ears to her son after she died.小题5:What moral lesson can we draw from this reading?

A．Real love lies in what is done unknown rather than what is done known.

B．It is parents’ responsibility to help their children heart and soul.

C．True beauty lies only in the heart not in appearance.

D．Young generations should learn to be grateful.

男，30岁，从2米高处跌落，左腰部着地，伤后腰痛并有肉眼全程血尿，有小血块，查：BP110／70mmHg，P100次／分；左腰部青紫压痛，腹部无压痛反跳痛。

如该患者伤后4小时突然发生血压下降，查：BP70／50mmHg，P120次／分，左腰部包块并触痛，经输血800ml，血压仅上升到80／60mmHg，尿色无改变，左腰部肿块增大，B超为肾裂伤，对侧肾正常，抽血查总肾功能正常，该患者应立即采取最佳治疗方法（）

A.快速输血补液

B.经第11肋间切口。肾切除术

C.经腹行肾切除术

D.肾动脉造影+栓塞术

E.快速输血补液的同时手术探查