Susan returned to her sixth-grade-student-teaching experience the following Monday. She told the story to her students and showed them pictures from the newspaper. Her inspired and compassionate students took action. They stopped raising money for their trip to Camp, Kern and began raising money for the flood victims. They sold lollipops, wrote letters to the community asking for donations and collected their own money. Even fast-graders donated money. Mountains of clothes, furniture and food piled up. Susan's class made Easter baskets from shoe-boxes and filled them with candy and toys as well as toothpaste, soap, toothbrushes and shampoo.
She and I loaded her mom's black Chevy Beretta to the ceiling with the Easter baskets. On the trip there, I wondered what I would see; I couldn't imagine losing almost everything. Dusk was beginning to set in, and I felt nervous when we arrived. My stomach dropped when I saw some houses reduced to the railroad ties that had been their foundation. The smell of river water permeated the air. No carpet, furniture, plumbing or appliances remained. Knowing that only days ago this had been someone's home pained my heart. How many children had grown up here? What kind of memories lingered? Would the house ever be rebuilt? The monster flood had dulled its roar and retreated, but its impact would be long-lasting.
We drove from house to house, knocking on doors, ready to begin our mission. I was filled with trepidation. Would families who had been devastated by floodwater want an Easter basket? The gesture was beginning to seem useless. "Hello, I'm Susan Moore, and this is my friend, Allison. My sixth-graders at Pennyroyal Elementary made Easter baskets for you when they heard about the flooding because they wanted to help."
Their faces lit up as they opened their gifts. As we entered one home, a husband and wife were crouched over their floor with hammer and nails. When be opened the box, he began to cry. "I can't believe those kids did this. Let me give you some money for their school." As I glanced at what was left of his home, I could not believe his generous spirit. He eventually conceded to write a thank-you note instead. One woman ran out to find us after opening her box, tears roiling down her face. "I collected .bunny rabbits, and I lost them all in the flood. There was a small pink rabbit in my box. I can start my collection again. Thank you." The burly man standing next to her also had tears in his eyes.
My heart was warmed as I played the small role of messenger in this tribute to the good in the human spirit. So often we hear of the shortcomings of our youth, but these youngsters answered a cry for help and gave proof that generosity and love prevail.
In the passage, Mother Nature showed her power in all of the following ways EXCEPT
A.evacuating people to higher ground.
B.sweeping different kinds of animals away.
C.carrying cars and trucks miles away.
D.immersing buildings in the low-lying areas in water.
第1题
A.AT-Ⅲ属于丝氨酸蛋白酶抑制因子
B.AT-Ⅲ抗原量成人血浆浓度为272~329mg/L(免疫法参考值)
C.AT-Ⅲ的抗凝血酶活性(酶学测定法)一般为80%~120%
D.AT-Ⅲ活性增高可导致出血,活性减低无临床意义
E.有凝血法、免疫检查法和酶学测定法
第2题
加强抗凝血酶Ⅲ(AT-Ⅲ)灭活丝氨酸蛋白酶,从而具有阻止凝血酶的形成
A.氟化钠
B.枸橼酸钠
C.双草酸盐
D.EDTA
E.肝素
第3题
关于抗凝血酶Ⅲ(AT-Ⅲ),下列说法错误的是
A、具有抗凝血酶、活化因子Ⅷ的作用
B、肝素能增强AT-Ⅲ的生物活性
C、如果AT-Ⅲ浓度较低,应先应用AT-Ⅲ后再用肝素
D、平均输注1U/kg的AT-Ⅲ可使AT-Ⅲ活性提高1%
E、AT-Ⅲ水平异常,提示DIC病理过程尚未控制
第4题
加强抗凝血酶Ⅲ(AT-Ⅲ)灭活丝氨酸蛋白酶,从而具有阻止凝血酶的形成
A.氟化钠
B.枸橼酸钠
C.双草酸盐
D.EDTA
E.肝素
第5题
关于抗凝血酶Ⅲ(AT-Ⅲ),下列说法错误的是
A、T-Ⅲ活性提高1%
B、肝素能增强AT-Ⅲ的生物活性
C、如果AT-Ⅲ浓度较低,应先应用
D、平均输注1U/kg的AT-Ⅲ可使
E、AT-Ⅲ水平异常,提示DIC病理过程尚未控制
第6题
加强抗凝血酶Ⅲ(AT-Ⅲ)灭活丝氨酸蛋白酶,从而具有阻止凝血酶的形成
A.氟化钠
B.枸橼酸钠
C.双草酸盐
D.EDTA
E.肝素
第7题
关于抗凝血酶Ⅲ的叙述,错误的是
A.是血浆的正常成分
B.是一种抗丝氨酸蛋白酶
C.可封闭因子Ⅱa、Ⅶ、Ⅸa的活性中心
D.每一分子抗凝血酶Ⅲ可与多个凝血酶结合,使之失活
第8题
下面关于抗凝血酶Ⅲ(AT-Ⅲ)的描述,哪一项是错误的
A.对其他丝氨酸蛋白酶如FⅨa、FⅪa、FⅫa亦有一定的灭活作用
B.是人体内最重要的抗凝物质,约占血浆生理性抗凝活性的75%
C.其抗凝活性与肝素密切相关
D.主要功能是灭活FV和凝血酶
E.生成于肝脏及血管内皮细胞
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