题干

小雪同学发现家里有一瓶无标签的无色液体,她为了探究它是何种物质,做了如下实验:把此液体编号为A,在A中加入黑色粉末C,稍微振荡,在常温下就能迅速产生气体B,且产生了常温下为液体的纯净物D,而C的质量在反应前后没有改变。她把B收集起来,用带火星的木条伸入盛B的集气瓶中,木条剧烈燃烧。如把黄色粉末E点燃后放入盛B的集气瓶中,能剧烈燃烧,生成一种无色有刺激性气味的气体F。
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    Clara Barton,founder of the American Red Cross,gained worldwide honor for her dedication to easing human suffering and earned the nickname  “Angel of the Battlefield.”

    Barton was born into a liberal (开明的) freethinking family in 1821. Her elder brothers and sisters happily tutored her in math and reading, so when she entered school at three years old, she could read and spell three-syllable words. ____

    Concerned about Barton's difficulty in making friends, her parents sent her to a boarding school, hoping it would make her more comfortable with her peers. ____ Barton lost her appetite and cried constantly. After only one term, she had to be brought home. Then, Barton stayed out of school to nurse her older brother through a serious injury and also volunteered to care for poor families during a smallpox (天花)outbreak.

    In 1861,the Civil War broke out. The sight of wounded soldiers touched Barton deeply. She began to collect and distribute food, bandages, medicines, and other supplies for the Union army.

    ____ There, with little concern for her own safety, she cooked meals, assisted surgeons, and comforted wounded soldiers.

    Eventually,because of working too hard,Barton collapsed,ill with typhoid fever (伤寒症). ____ It was there that she learned of an organization based in Switzerland — called the International Red Cross, whose work mirrored her own.

    Shortly after Barton arrived back home in 1873,her sister died. ____ When recuperating (休养)at a health facility in New York,she began planning for the establishment of an American wing of the International Red Cross. Although at first the government resisted,her efforts finally paid off. The American Red Cross was officially organized on May 21, 1881. Her influence lives on today in the work of the organization she founded.

A. Barton fell into a deep depression.

B. Unfortunately, it had the opposite effect.

C. Many people felt sorry for the loss of her sister and her own health.

D. Barton risked her life to transport wagonloads of supplies to the front lines.

E. When she recovered, her doctors prescribed (指示) a long, restful trip to Europe.

F. Barton spent the following several months learning basics about Swiss Cross.

G. She easily kept up with the older children academically but did not fit in socially.